Toshiba AS311 user manual Buffer memory information, Module status

6. RAS Information

6.2 Buffer memory information

Various RAS information are stored in the AS311’s buffer memory. These information can be read by READ instruction. When some abnormality has occurred, check these information.

6.2.1Module status

Address 4 of the buffer memory stores the AS311 module status.

4

F	E	D	C	B	A	9	8	7	6	5	4	3	2	1	0
RDY	ERR	0	0	0	0	0	0				Error code

Bit F			RDY (Ready)		1 = operating normally
					0 = under initialization or error state
Bit E			ERR (Error)		1 = error state
					0 = no error (normal)
Bit 7-0			Error code		Shows the detected error item if ERR is 1.
					See the table below (H00 when normal)
	Error		Type of error		Description	Status
	code
	H01	CPU error		CPU error has been detected		Operation is stopped.
				during initialization.
	H02	ROM error		ROM error has been detected		Operation is stopped.
				during initialization.
	H03	RAM error		Work RAM error has been		Operation is stopped.
				detected during initialization.
	H04	Buffer memory		Buffer memory error has been		Operation is stopped.
		error		detected during initialization.
	H05	Switch setting		Switch setting abnormality has		Operation is stopped.
		abnormal		been detected during
				initialization.
	H10	Watchdog		Watchdog timer error has		Operation is stopped.
		timer error		occurred during operation.		Cold reset will be
						effective.
	H11	Trap interrupt		Trap interrupt has occurred by		Operation is stopped.
		error		detecting illegal instruction		Cold reset will be
				during operation.		effective.
	H12	Buffer memory		Buffer memory time-out has		Operation is stopped.
		time-out error		occurred during operation.		Cold reset will be
						effective.

User’s Manual 53