Epson S1C88650 - Manual (Page 104)

96 EPSON S1C88650 TECHNICAL MANUAL
5 PERIPHERAL CIRCUITS AND THEIR OPERATION (Programmable Timer)
Table 5.10.9.1(b) Programmable timer control bits
SR R/W Address Bit Name Function Comment 1 0
00FF19 D7
D6
D5
D4
D3
D2
D1
D0
PRPRT7
PST72
PST71
PST70
PRPRT6
PST62
PST61
PST60
Programmable timer 7 clock control
Programmable timer 7 division ratio
Programmable timer 6 clock control
Programmable timer 6 division ratio
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
On
On
Off
Off
PST72
1
1
1
1
0
0
0
0
PST71
1
1
0
0
1
1
0
0
PST70
1
0
1
0
1
0
1
0
(OSC3)
f OSC3 / 4096
f OSC3 / 1024
f OSC3 / 256
f OSC3 / 64
f OSC3 / 32
f OSC3 / 8
f OSC3 / 2
f OSC3 / 1
(OSC1)
f OSC1 / 128
f OSC1 / 64
f OSC1 / 32
f OSC1 / 16
f OSC1 / 8
f OSC1 / 4
f OSC1 / 2
f OSC1 / 1
PST62
1
1
1
1
0
0
0
0
PST61
1
1
0
0
1
1
0
0
PST60
1
0
1
0
1
0
1
0
(OSC3)
f OSC3 / 4096
f OSC3 / 1024
f OSC3 / 256
f OSC3 / 64
f OSC3 / 32
f OSC3 / 8
f OSC3 / 2
f OSC3 / 1
(OSC1)
f OSC1 / 128
f OSC1 / 64
f OSC1 / 32
f OSC1 / 16
f OSC1 / 8
f OSC1 / 4
f OSC1 / 2
f OSC1 / 1
00FF17 D7
D6
D5
D4
D3
D2
D1
D0
–
–
–
–
PRTF3
PRTF2
PRTF1
PRTF0
–
–
–
R/W register
Programmable timer 3 source clock selection
Programmable timer 2 source clock selection
Programmable timer 1 source clock selection
Programmable timer 0 source clock selection
Constantly "0" when
being read
Reserved register
–
–
–
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
–
–
–
1
f OSC1
f OSC1
f OSC1
f OSC1
–
–
–
0
f OSC3
f OSC3
f OSC3
f OSC3
00FF1B D7
D6
D5
D4
D3
D2
D1
D0
–
–
–
–
PRTF7
PRTF6
PRTF5
PRTF4
–
–
–
–
Programmable timer 7 source clock selection
Programmable timer 6 source clock selection
Programmable timer 5 source clock selection
Programmable timer 4 source clock selection
Constantly "0" when
being read
–
–
–
–
0
0
0
0
R/W
R/W
R/W
R/W
–
–
–
–
f OSC1
f OSC1
f OSC1
f OSC1
–
–
–
–
f OSC3
f OSC3
f OSC3
f OSC3
00FF21 D7
D6
D5
D4
D3
D2
D1
D0
–
–
PPT3
PPT2
PPT1
PPT0
–
–
Constantly "0" when
being read
Constantly "0" when
being read
–
–
–
–
–
–
–
–
–
–
–
–
–
PPT3
PPT1
1
1
0
0
PPT2
PPT0
1
0
1
0
–
–
Programmable timer 3–2 interrupt
priority register
Programmable timer 1–0 interrupt
priority register
–
–
Priority
level
Level 3
Level 2
Level 1
Level 0
0
0
R/W
R/W
00FF2A D7
D6
D5
D4
D3
D2
D1
D0
–
–
–
–
PPT7
PPT6
PPT5
PPT4
Constantly "0" when
being read
–
–
–
–
0
0
R/W
R/W
–
–
–
–
–
–
–
–
PPT7
PPT5
1
1
0
0
PPT6
PPT4
1
0
1
0
–
–
–
–
Programmable timer 7–6 interrupt
priority register
Programmable timer 5–4 interrupt
priority register
Priority
level
Level 3
Level 2
Level 1
Level 0