Vox SSC-33 Specifications download pdf (Page 13)

•

CPU Voltage Selection - 3.3V, or 3.45V

CPU Voltage JP14

* +3.3V 2-3

+3.45V 1-2

(*) : default setting

2.5 System Memory DRAM(EDO RAM supported)

There are two 72-pin SIMM sockets to accept

1MB,2MB,4MB,8MB,16MB,or 32MB memory modules.

The total capacity is from 1MB to 64MB.

Customer can free install any memory module on any socket.

Don‘ t care which socket is first to install.

2.6 Watch-Dog Timer

The Watch-Dog Timer is enabled by reading port 443H. It should

be triggered before the time-out period ends, otherwise it will

assume the program operation is abnormal and will issue a reset

signal to start again, or activate NMI to CPU. The Watch-Dog

Timer is disable by reading port 043H. See Appendix A for more

detailed description of Watch-Dog Timer.

• JP19 : Watch-Dog Active Type Setting

JP19 DESCRIPTION

*1-2 RESET WHEN WDT TIME-OUT

2-3 ACTIVATE NMI TO CPU WHEN WDT TIME-OUT

OPEN DISABLE WDT

(*): default setting

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 30 31

No comments

Vox SSC-33 Specifications Page 13