Motorola MVME1X7P manual CA Ethernet LAN Memory Map

1

Programming Issues

Table 1-9. Cirrus Logic CD2401 Serial Port Memory Map (Continued)

Base Address = $FFF45000

Register Description	Register	Offsets	Size	Access
	Name
General Timer 1 low	GT1l	2B	B	R Sync
General Timer 1 high	GT1h	2A	B	R Sync
General Timer 2	GT2	29	B	R Sync
Transmit Timer Register	TTR	29	B	R Async

Note This is a 16-bit register

Table 1-10. 82596CA Ethernet LAN Memory Map

82596CA Ethernet LAN Directly Accessible Registers

		Data Bits
Address	D31	D16	D15	D0
$FFF46000	Upper Command Word		Lower Command Word
$FFF46004	MPU Channel Attention (CA)

Notes

1.Refer to the MPU Port and MPU Channel Attention register entries.

2.After resetting, you must write the System Configuration Pointer to the command registers before writing to the MPU Channel Attention register. Writes to the System Configuration Pointer must be upper word first, lower word second.

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