Table 372: Asf Watchdog Timer Register (Offset 0X6C0C); Table 373: Asf Heartbeat Timer Register (Offset 0X6C10) - Broadcom BCM5722 Programmer's Manual

BCM5722
Bit Field
8 SMB Output Ready
7:0 SMB Data Output
Note: The BCM5722 Ethernet controller uses a 5-byte internal output FIFO for SMBus messages. When an
SMBus message is begun by setting the SMB Output Start bit, the software must write the next output byte within
100 µs, or an underflow may occur and invalidate the entire SMBus message.
ASF W T
ATCHDOG IMER
Bit Field
31:8 Reserved
7:0 Watchdog timer
ASF H T
EARTBEAT IMER
Bit Field
31:16 Reserved.
15:0 Heartbeat timer
Page 359 ASF Support Registers
Table 371: SMBus Output Register (Offset 0x6C08) (Cont.)
Description
Set to indicate the SMB Data Output field has valid data.
Cleared by the SMBus interface block when the bye is
transferred to the internal FIFO.
Outgoing data byte for the SMB transaction.
R (O
EGISTER FFSET

Table 372: ASF Watchdog Timer Register (Offset 0x6C0C)

Description
–
A countdown timer which decrements at the rate of one
tick per second. When the counter reaches a value of
zero, the corresponding timeout bit is set in the ASF
Control Register (see
0x6C00)" on page
when it reaches the zero value.
R (O
EGISTER FFSET

Table 373: ASF Heartbeat Timer Register (Offset 0x6C10)

Description
–
A countdown timer which decrements at the rate of one
tick per second. When the counter reaches a value of
zero, the corresponding timeout bit is set in the ASF
Control Register (see
0x6C00)" on page
when it reaches the zero value.
Bro adco m C orp or atio n
0 6C0C)
X
"ASF Control Register (Offset
356). The timer stops decrementing
0 6C10)
X
"ASF Control Register (Offset
356). The timer stops decrementing
Programmer's Guide
10/15/07
Init Access
0 R/W
0 R/W
Init Access
0 R/W
0 R/W
Init Access
0 R/W
0 R/W
Document 5722-PG101-R