zl50405 Zarlink Semiconductor, zl50405 Datasheet - Page 66

• Manufacturer Part Number: zl50405
• Description: Managed5-port 10/100 M Ethernet Switch
• Manufacturer: Zarlink Semiconductor

12.2
12.2.1
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12.2.2
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12.2.3
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12.2.4
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12.2.5
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DPST
DTST
DA
Address for indirectly accessed register addresses (8/16 bits)
Address = 0 (write only)
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Address for indirectly accessed register addresses (8 bits)
Address = 1 (write only)
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Data of indirectly accessed registers (8 bits)
Address = 2 (read/write)
CPU transmit/receive switch frames (8/16 bits)
Address = 3 (read/write)
Format:
CPU interface commands and status (8 bits)
Address = 4 (read/write)
When the CPU writes to this register
In 16-bit or serial mode: Address bits [15:0]
In 8-bit mode: Address bits [7:0]
In 16-bit or serial mode: NA
In 8-bit mode: Address bits [15:8]
Directly Accessed Registers
Register
INDEX_REG0
INDEX_REG1 (only needed for 8-bit mode)
DATA_FRAME_REG
CONTROL_FRAME_REG
COMMAND&STATUS Register
8-byte of Frame status (Frame size, Source port #, VLAN tag)
Frame Data (size should be in multiple of 8-byte)
Device Port Status Register
Data read back register
DA Register
Table 13 - Register Description (continued)
Description
Zarlink Semiconductor Inc.
ZL50405
66
CPU Addr
(Hex)
FFF
F03
F04
R/W
R/W
RO
RO
(Hex)
Addr
NA
I²C
NA
NA
Default
0DA
000
NA
Data Sheet
Notes