Toshiba V200 Video Game Console User Manual


 
Page 93
The function selection is done through configuration register1
Function Register/device Remarks
Phase A
IP
1 (X000)
Phase B
IP
2 (X001)
Reset input
IP
3 (X002)
Comparison value 1
MW12 MW13
Data range: 0 to 4294967295
Comparison value 2
MW14 MW15
Count value MW16 MW17
Soft-gate M320 Operation is enabled when ON
Interrupt enable 1 M322 Interrupt 1 is enabled when ON
Count preset 1 M324 Used to preset the count value
Interrupt enable 2 M323 Interrupt 2 is enabled when ON
Count preset 2 M325 Used to preset the count value
Hardware condition:
Phase A and phase B (IP 1 and IP 2)
1X Mode
ON/OFF pulse width: 100 micro sec. or more (max. 5 kHz)
2X Mode
ON/OFF pulse width: 100 micro sec. or more (max. 5 kHz)
4X Mode
ON/OFF pulse width: 100 micro sec. or more (max. 5 kHz)
Reset input (IP3)
ON/OFF duration: 2 ms or more
Interrupt assignment:
Comparison value 1 — I/O interrupt program #1
Comparison value 2 — I/O interrupt program #2