W89C841F Datasheet, PDF (62/102 Pages) Winbond – 3-IN - 1 10/100M FAST ETHERNET CONTROLLER

W89C841F/D
C3c/CGTR General Timer Register, continued
BIT ATTRIBUTE BIT NAME
16
R/W
RECUR
15:0
R/W
TIMER
DESCRIPTION
Recursive Mode
1: The value of bits Timer in the register C3c/CGTR[15:0]
can be reloaded for internal general timer to count down
when the internal general reaches zero.
0: No recursive to the internal general timer. (default)
General Timer
The bits TIMER shows the content of the general timer
inside the W89C841F. The internal general timer will count
down from the pre-set value, a non zero value, programmed
by the driver automatically. The time unit for the internal
general timer count_down is approximately 2048 times the
cycle duration of the MII TXCLK. For instance, the count
down time unit for a 25 MHz MII TXCLK is approximately 82
µS.
Dxx Function Registers
The following table outlined all the Dxx function registers for power management control and status,
EEPROM, Boot ROM, PHY’s Registers access and CardBus status/event in W89C841F.
CODE
ABBR.
MEANING
D00
D04 − D08
D0c
D10
D14
D18 − D1C
D20
D24
D28
D2c
D30
D34
D38
D3C
DWUPC Wake-up Control and Status
Reserved
DWF0CRC Wake-up Frame B0B1 CRC
DWF1CRC Wake-up Frame B2B3 CRC
DWF2CRC Wake-up Frame B4 CRC
Reserved
DBWF0BM0 Basic Wake-up Frame 0 Byte-Mask 0
DBWF0BM1 Basic Wake-up Frame 0 Byte-Mask 1
DBWF0BM2 Basic Wake-up Frame 0 Byte-Mask 2
DBWF0BM3 Basic Wake-up Frame 0 Byte-Mask 3
DBWF1BM0 Basic Wake-up Frame 1 Byte-Mask 0
DBWF1BM1 Basic Wake-up Frame 1 Byte-Mask 1
DBWF1BM2 Basic Wake-up Frame 1 Byte-Mask 2
DBWF1BM3 Basic Wake-up Frame 1 Byte-Mask 3
BASE
OFFSET
FROM
FBIOAD
00h
BASE
OFFSET
FROM
FBMA
100h
0Ch
10Ch
10h
110h
14h
114h
20h
120h
24h
124h
28h
128h
2Ch
12Ch
30h
130h
34h
134h
38h
138h
3Ch
13Ch
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