Document Outline

• Features
• Applications
• Device Overview
  • Figure 1 - ZL50050 Functional Block Diagram
  • Figure 2 - ZL50050 PBGA Connections (196 PBGA, 15 mm x 15 mm) Pin Diagram (as viewed through top of package)
  • Pin Description
• 1.0 Unidirectional and Bi-directional Switching Applications
  • Figure 3 - 8,192 x 8,192 Channels (16 Mbps), Unidirectional Switching
  • Figure 4 - 4,096 x 4,096 Channels (16 Mbps), Bi-directional Switching
  • 1.1 Flexible Configuration
    • 1.1.1 Non-Blocking Unidirectional Configuration (Typical System Configuration)
    • 1.1.2 Non-Blocking Bi-directional Configuration
    • 1.1.3 Blocking Bi-directional Configuration
      • Figure 5 - 6,144 by 2,048 Channels Blocking Bi-directional Configuration
• 2.0 Functional Description
  • 2.1 Switching Configuration
    • 2.1.1 Unidirectional Switch
    • 2.1.2 Backplane-to-Local Path
    • 2.1.3 Local-to-Backplane Path
    • 2.1.4 Backplane-to-Backplane Path
    • 2.1.5 Local-to-Local Path
    • 2.1.6 Port Data Rate Modes and Selection
      • Table 1 - Per-stream Input and Output Data Rate Selection: Backplane and Local, Non-32 Mbps Mode and 32 Mbps Mode
    • 2.1.7 Local Port Rate Selection
      • 2.1.7.1 Local Input Port
      • 2.1.7.2 Local Output Port
    • 2.1.8 Backplane Port Rate Selection
      • 2.1.8.1 Backplane Input Port
      • 2.1.8.2 Backplane Output Port
  • 2.2 Frame Pulse Input and Master Input Clock Timing
    • Figure 6 - ST-BUS and GCI-Bus Input Timing Diagram for Different Data Rates
  • 2.3 Input Frame Pulse and Generated Frame Pulse Alignment
    • Figure 7 - Input and Output (Generated) Frame Pulse Alignment for Different Data Rates
  • 2.4 Jitter Tolerance Improvement Circuit - Frame Boundary Discriminator
  • 2.5 Input Clock Jitter Tolerance
  • 2.6 Backward Compatibility with MT90871
• 3.0 Input and Output Offset Programming
  • 3.1 Input Offsets
    • 3.1.1 Input Channel Delay Programming (Backplane and Local Input Streams)
      • Figure 8 - Backplane and Local Input Channel Delay Timing Diagram (assuming 8 Mbps operation)
    • 3.1.2 Input Bit Delay Programming (Backplane and Local Input Streams)
      • Figure 9 - Backplane and Local Input Bit Delay Timing Diagram for Data Rate of 16 Mbps
      • Figure 10 - Backplane and Local Input Bit Delay or Sampling Point Selection Timing Diagram for Data Rate of 8 Mbps
  • 3.2 Output Advancement Programming (Backplane and Local Output Streams)
    • Figure 11 - Local and Backplane Output Advancement Timing Diagram for Data Rate of 16 Mbps
• 4.0 Port High-Impedance Control
  • Table 2 - Local and Backplane Output Enable Control Priority
  • 4.1 LORS/BORS Asserted LOW, Non-32Mbps Mode
    • Table 3 - L/BCSTo Allocation of Channel Control Bits to Output Streams (Non-32 Mbps Mode)
    • Figure 12 - Local/Backplane Port External High-Impedance Control Bit Timing (Non-32 Mbps Mode)
  • 4.2 LORS/BORS Asserted LOW, 32 Mbps Mode
    • Table 4 - L/BCSTo Allocation of Channel Control Bits to Output Streams (32 Mbps Mode)
    • Figure 13 - Local and Backplane Port External High-Impedance Control Timing (32 Mbps Mode)
  • 4.3 LORS/BORS Asserted HIGH
• 5.0 Data Delay Through the Switching Paths
  • Table 5 - Variable Range for Input Streams
  • Table 6 - Variable Range for Output Streams
  • Table 7 - Data Throughput Delay
  • Figure 14 - Data Throughput Delay with Input Channel Delay Disabled, Input Ch0 Switched to Output Ch0
  • Figure 15 - Data Throughput Delay with Input Channel Delay Disabled, Input Ch0 Switched to Output Ch13
  • Figure 16 - Data Throughput Delay with Input Channel Delay Disabled, Input Ch13 Switched to Output Ch0
  • Figure 17 - Data Throughput Delay with Input Channel Delay Enabled, Input Ch0 Switched to Output Ch0
  • Figure 18 - Data Throughput Delay with Input Channel Delay Enabled, Input Ch0 Switched to Output Ch13
  • Figure 19 - Data Throughput Delay with Input Channel Delay Enabled, Input Ch13 Switched to Output Ch0
• 6.0 Bit Error Rate Test
  • Figure 20 - Examples of BER Transmission Channels on a 16 Mbps Output Stream
• 7.0 Microprocessor Port
• 8.0 Device Power-up, Initialization and Reset
  • 8.1 Power-Up Sequence
  • 8.2 Initialization
  • 8.3 Reset
    • Figure 21 - Hardware RESET De-assertion
• 9.0 Connection Memory
  • 9.1 Local Connection Memory
  • 9.2 Backplane Connection Memory
    • Table 8 - Local and Backplane Connection Memory Configuration
  • 9.3 Connection Memory Block Programming
    • 9.3.1 Memory Block Programming Procedure:
      • Table 9 - Local Connection Memory in Block Programming Mode
      • Table 10 - Backplane Connection Memory in Block Programming Mode
• 10.0 Memory Built-In-Self-Test (BIST) Mode
• 11.0 JTAG Port
  • 11.1 Test Access Port (TAP)
  • 11.2 TAP Registers
    • 11.2.1 Test Instruction Register
    • 11.2.2 Test Data Registers
      • 11.2.2.3 The Device Identification Register
  • 11.3 Boundary Scan Description Language (BSDL) File
• 12.0 Memory Address Mappings
  • Table 11 - Address Map for Data and Connection Memory Locations (A14 = 1)
  • 12.1 Local Data Memory Bit Definition
    • Table 12 - Local Data Memory (LDM) Bits
  • 12.2 Backplane Data Memory Bit Definition
    • Table 13 - Backplane Data Memory (BDM) Bits
  • 12.3 Local Connection Memory Bit Definition
    • Table 14 - LCM Bits for Non-32Mbps Source-to-Local Switching
    • Table 15 - LCM Bits for 32 Mbps Source-to-Local Switching
  • 12.4 Backplane Connection Memory Bit Definition
    • Table 16 - BCM Bits for Non-32Mbps Source-to-Backplane Switching
    • Table 17 - BCM Bits for 32 Mbps Source-to-Backplane Switching
• 13.0 Internal Register Mappings
  • Table 18 - Address Map for Registers (A14 = 0)
• 14.0 Detailed Register Descriptions
  • 14.1 Control Register (CR)
    • Table 19 - Control Register Bits
    • Figure 22 - Frame Boundary Conditions, ST-BUS Operation
    • Figure 23 - Frame Boundary Conditions, GCI-Bus Operation
  • 14.2 Block Programming Register (BPR)
    • Table 20 - Block Programming Register Bits
  • 14.3 Bit Error Rate Test Control Register (BERCR)
    • Table 21 - Bit Error Rate Test Control Register (BERCR) Bits
  • 14.4 Local Input Channel Delay Registers (LCDR0 to LCDR15)
    • Table 22 - Local Input Channel Delay Register (LCDRn) Bits
    • 14.4.1 Local Channel Delay Bits 8-0 (LCD8 - LCD0)
      • Table 23 - Local Input Channel Delay (LCD) Programming Table
  • 14.5 Local Input Bit Delay Registers (LIDR0 to LIDR15)
    • Table 24 - Local Input Bit Delay Register (LIDRn) Bits
    • 14.5.1 Local Input Delay Bits 4-0 (LID[4:0])
      • Table 25 - Local Input Bit Delay and Sampling Point Programming Table
  • 14.6 Backplane Input Channel Delay Registers (BCDR0 to BCDR15)
    • Table 26 - Backplane Input Channel Delay Register (BCDRn) Bits
    • 14.6.1 Backplane Channel Delay Bits 8-0 (BCD8 - BCD0)
      • Table 27 - Backplane Input Channel Delay (BCD) Programming Table
  • 14.7 Backplane Input Bit Delay Registers (BIDR0 to BIDR15)
    • Table 28 - Backplane Input Bit Delay Register (BIDRn) Bits
    • 14.7.1 Backplane Input Delay Bits 4-0 (BID[4:0])
      • Table 29 - Backplane Input Bit Delay and Sampling Point Programming Table
  • 14.8 Local Output Advancement Registers (LOAR0 to LOAR15)
    • Table 30 - Local Output Advancement Register (LOAR) Bits
    • 14.8.1 Local Output Advancement Bits 1-0 (LOA1-LOA0)
      • Table 31 - Local Output Advancement (LOAR) Programming Table
  • 14.9 Backplane Output Advancement Registers (BOAR0 - BOAR15)
    • Table 32 - Backplane Output Advancement Register (BOAR) Bits
    • 14.9.1 Backplane Output Advancement Bits 1-0 (BOA1-BOA0)
      • Table 33 - Backplane Output Advancement (BOAR) Programming Table
  • 14.10 Local Bit Error Rate (BER) Registers
    • 14.10.1 Local BER Start Send Register (LBSSR)
      • Table 34 - Local BER Start Send Register (LBSSR) Bits in Non-32 Mbps Mode
      • Table 35 - Local BER Start Send Register (LBSSR) Bits in 32 Mbps Mode
    • 14.10.2 Local Transmit BER Length Register (LTXBLR)
      • Table 36 - Local BER Length Register (LTXBLR) Bits
    • 14.10.3 Local Receive BER Length Register (LRXBLR)
      • Table 37 - Local Receive BER Length Register (LRXBLR) Bits
    • 14.10.4 Local BER Start Receive Register (LBSRR)
      • Table 38 - Local BER Start Receive Register (LBSRR) Bits for Non-32 Mbps Mode
      • Table 39 - Local BER Start Receive Register (LBSRR) Bits for 32 Mbps Mode
    • 14.10.5 Local BER Count Register (LBCR)
      • Table 40 - Local BER Count Register (LBCR) Bits
  • 14.11 Backplane Bit Error Rate (BER) Registers
    • 14.11.1 Backplane BER Start Send Register (BBSSR)
      • Table 41 - Backplane BER Start Send Register (BBSSR) Bits
    • 14.11.2 Backplane Transmit BER Length Register (BTXBLR)
      • Table 42 - Backplane Transmit BER Length (BTXBLR) Bits
    • 14.11.3 Backplane Receive BER Length Register (BRXBLR)
      • Table 43 - Backplane Receive BER Length (BRXBLR) Bits
    • 14.11.4 Backplane BER Start Receive Register (BBSRR)
      • Table 44 - Backplane BER Start Receive Register (BBSRR) Bits
    • 14.11.5 Backplane BER Count Register (BBCR)
      • Table 45 - Backplane BER Count Register (BBCR) Bits
  • 14.12 Local Bit Rate Registers
    • 14.12.1 Local Input Bit Rate Registers (LIBRR0 - LIBRR15)
      • Table 46 - Local Input Bit Rate Register (LIBRR) Bits
      • Table 47 - Local Input Bit Rate (LIBR) Programming Table
    • 14.12.2 Local Output Bit Rate Registers (LOBRR0 - LOBRR15)
      • Table 48 - Local Output Bit Rate Register (LOBRR) Bits
      • Table 49 - Local Output Bit Rate (LOBR) Programming Table
  • 14.13 Backplane Bit Rate Registers
    • 14.13.1 Backplane Input Bit Rate Registers (BIBRR0 - BIBRR15)
      • Table 50 - Backplane Input Bit Rate Register (BIBRR) Bits
    • 14.13.2 Backplane Output Bit Rate Registers (BOBRR0 - BOBRR15)
      • Table 52 - Backplane Output Bit Rate Register (BOBRR) Bits
      • Table 53 - Backplane Output Bit Rate (BOBRR) Programming Table
  • 14.14 Memory BIST Register
    • Table 54 - Memory BIST Register (MBISTR) Bits
  • 14.15 Device Identification Register
    • Table 55 - Device Identification Register (DIR) Bits
• 15.0 DC Electrical Characteristics
  • Absolute Maximum Ratings*
  • Recommended Operating Conditions
• 16.0 AC Electrical Characteristics
  • AC Electrical Characteristics Timing Parameter Measurement: Voltage Levels
  • Input and Output Clock Timing
  • Figure 24 - Input and Output Clock Timing Diagram for ST-BUS
  • Figure 25 - Input and Output Clock Timing Diagram for GCI-Bus
  • Local and Backplane Data Timing
  • Figure 26 - ST-BUS Local/Backplane Data Timing Diagram (8 Mbps, 4 Mbps, 2 Mbps)
  • Figure 27 - ST-BUS Local/Backplane Data Timing Diagram (32 Mbps, 16 Mbps)
  • Figure 28 - GCI-Bus Local/Backplane Data Timing Diagram (8 Mbps, 4 Mbps, 2 Mbps)
  • Figure 29 - GCI-Bus Local/Backplane Data Timing Diagram (32 Mbps, 16 Mbps)
  • Local and Backplane Output High-Impedance Timing
  • Figure 30 - Serial Output and External Control
  • Figure 31 - Output Driver Enable (ODE)
  • Input Clock Jitter Tolerance
  • Non-Multiplexed Microprocessor Port Timing
  • Figure 32 - Motorola Non-Multiplexed Bus Timing
  • AC Electrical Characteristics - JTAG Test Port Timing
  • Figure 33 - JTAG Test Port Timing Diagram