Technical information

7-70
AIC-6915 Ethernet LAN Controller Programmer’s Manual
TestMode Register (TBD)
Type: R/W
Internal Registers Subgroup: Ethernet Extra Registers
Byte Address: 4000h - 4003h
This register controls test mode of the chip.
RxFrameProcessorCtrl Register
Type: R/W
Internal Registers Subgroup: Ethernet Extra Registers
Byte Address: 4004h - 4007h
TxFrameProcessorCtrl Register
Type: R/W
Internal Registers Subgroup: Ethernet Extra Registers
Byte Address: 4008h- 400Bh
Table 7-88. TestMode Register
Bit(s) rw
Reset
Value Description/Function
31:9 r 0
Reserved
. Always reads 0.
8r/w0
Boot EPROM Test Select
- This bit is used by the Boot EPROM
control block to multiplex out test output bits instead of using
regular functional output bits. This bit must be set for the test mode
to be active.
7:4 r/w 0
TestBlockSelect
- This field selects a block whose test information is
to be driven onto the
GPIOD
ATA
[3:0]
pins.
3:0 r/w 0
Te s tS e l
- The test select bus is used by those blocks specified by bits
7:4. The bus is used to perform internal multiplexing of the test
information and drive the result to its Test Output port.
Table 7-89. Rx General Frame Processor Control Register
Bit(s) rw
Reset
Value Description/Function
31:0 r 0
Reserved
: Always read as 0.
Table 7-90. TxFrameProcessorCtrl Register
Bit(s) rw
Reset
Value Description/Function
31:0 r 0 Reserved: Always read as 0.