STE10/100 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'STE10/100' PDF : 66 Pages View PDF
STE10/100
Table 6. Control/Status register description
Bit #
Name
Descriptions
Default Val RW Type
8
PME_En PME_En. When set, enables the STE10/100 to assert PME#.
0
RO
When cleared, disables the PME# assertion.
7~2
---
reserved.
000000b
RO
1,0
PWRS PowerState, This two-bit field is used both to determine the
00b
RO
current power state of the STE10/100 and to set the STE10/
100 into a new power state. The definition of this field is given
below.
00b - D0
01b - D1
10b - D2
11b - D3hot
If software attempts to write an unsupported state to this field,
the write operation will complete normally on the bus, but the
data is discarded and no state change occurs.
CSR23(offset = 9ch) - TXBR, transmit burst count / time-out
31~21
---
reserved
20~16
TBCNT Transmit Burst Count
0
R/W
Specifies the number of consecutive successful transmit burst
writes to complete before the transmit completed interrupt will
be generated.
11~0
TTO Transmit Time-Out = (deferred time + back-off time).
0
R/W
When TDIE (ACSR7 bit 28) is set, the timer is decreased in
increments of 2.56us (@100M) or 25.6us (@10M). If the timer
expires before another packet transmit begins, then the TDIE
interrupt will be generated.
CSR24(offset = a0h) - FROM, Flash ROM(also the boot ROM) port
31
bra16_on This bit is only valid when 4 LEDmode_on (CSR18 bit 23) is
1
R/W
set. In this case, when bra16_on is set, pin 87 functions as
brA16; otherwise it functions as LED pin – fd/col.
30~28
---
reserved
27
REN Read Enable. Clear if read data is ready in DATA, bit7-0 of
0
R/W
FROM.
26
WEN Write Enable. Cleared if write completed.
0
R/W
25
---
reserved
24~8
ADDR Flash ROM address
0
R/W
7~0
DATA Read/Write data of flash ROM
0
R/W
CSR25(offset = a4h) - PAR0, physical address register 0, automatically recalled from EEPROM
31~24
PAB3 physical address byte 3
From
R/W
EEPROM
23~16
PAB2 physical address byte 2
From
R/W
EEPROM
15~8
PAB1 physical address byte 1
From
R/W
EEPROM
29/66
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