Error Status Register; Operating Status Register; Calculation Result Register; Version Number Register - Epson Arm S1C31 Series Technical Manual

Error Status Register

Register name Bit
ERROR 15–0 ERROR[15:0]
Bits 15–0 ERROR[15:0]
These bits indicate the error that has occurred while the HWP is running. For the errors that may oc-
cur in the Memory Check function, refer to Table 22.4.2.2.

Operating Status Register

Register name Bit
STATUS 15–10 –
(Memory Check)
9–8 PROCESSING[1:0]
7–1 –
0
Bits 15–10 Reserved
Bits 9–8 PROCESSING[1:0]
These bits indicate the memory check processing status.
PROCESSING[1:0] bits
Bits 7–1 Reserved
Bit 0 READY
This bit indicates the HWP operating status (whether a command is acceptable or not).
1 (R): Ready (Command is acceptable.)
0 (R): Busy (Command is not acceptable.)

Calculation Result Register

Register name Bit
RESULT 31–0 RESULT[31:0]
(Memory Check)
Bits 31–0 RESULT[31:0]
These bits indicate the memory check result.
When the RAM check has completed
Indicates the address where a first error has occurred.
When the Flash check has completed
Indicates the checksum/CRC calculation result. Compare it with the original value to confirm
whether there is an error or not.

Version Number Register

Register name Bit
VERSION 15–8 MAJOR[7:0]
7–0 MINOR[7:0]
Bits 15–8 MAJOR[7:0]
Bits 7–0 MINOR[7:0]
These bits indicate the HWP version number.
Version number = MAJOR[7:0] . MINOR[7:0]
S1C31D41 TECHNICAL MANUAL
(Rev. 1.1)
Bit name Initial
x
Bit name Initial
x
x
x
READY x
Table 22.6.2.3 Memory Check Processing Status
STATUS.
RAM check
0x0003 Terminated with an error
0x0002 Completed successfully
0x0001 During checking
0x0000 During standby
Bit name Initial
x
Bit name Initial
x
x
Seiko Epson Corporation
22 HW Processor (HWP) and Sound Output (SDAC2)
Reset R/W
– R –
Reset R/W
– R –
– R
– R
– R
Memory check processing status
Flash check
Completed
During checking
During standby
Reset R/W
– R –
Reset R/W
– R –
– R
Remarks
Remarks
–
Remarks
Remarks
22-27