S-7600A Datasheet, PDF (49/60 Pages) Seiko Instruments Inc – Hardware Specification (TCP/IP Network Stack LSI)

TCP/IP Network Stack LSI
S-7600A
Hardware Specification Revision 1.3
Bit
Bit Name
Access
Description
0
PPP_UP/SRst
R/W
When read, this bit indicates when the PPP layer establishes a
connection.
0 = PPP Connection down
1 = PPP Connection established
When written, this bit will reset the PPP engine. It is self-clearing
and goes not need to be written low for normal operations.
0 = PPP Normal operation
1 = PPP Reset
7.3.32. PPP Interrupt Code (0x61)
(Read-Only, Default 0x00)
This register indicates the interrupt condition that causes the PPP interrupt to trigger.
Table 7-53
PPP Interrupt Code Register Bit Definitions
Bit
7
6
5
4
3
2
1
0
Def.
PPP Interrupt Code
Default
0
Table 7-54
PPP Interrupt Error Codes
Error Code
0x00
0x01
0x02
0x05
Definition
Reserved
PPP Failed initial LCP negotiations
PPP Failed NCP negotiations
PAP Failed negotiations
7.3.33. PPP Max Retry, (0x62)
(Read/Write, Default 0x0A)
This register configures the maximum retry number. This number is used to determine the maximum
number of configuration requests that are sent during the PPP negotiation stage.
Table 7-55
PPP Max Retry Register
Bit
7
6
5
4
Def.
-
Default
0x0
NOTE: Reserved bits are signified by a dash (-).
3
2
1
0
PPP Maximum Retry
0xA
Seiko Instruments Inc.
7-22