S-7600A Datasheet, PDF (47/55 Pages) Seiko Instruments Inc – Hardware Specification (TCP/IP Network Stack LSI)

S-7600A
Hardware Specification
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
0x03
0x04
0x05
Definition
Reserved
PPP Failed initial LCP negotiations
PPP Failed NCP negotiations
Unexpected LCP closure
Termination Request received
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.
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