Control Of Stopwatch Timer - Epson 0C88832 Technical Manual

5 PERIPHERAL CIRCUITS AND THEIR OPERATION (Stopwatch Timer)

5.9.4 Control of stopwatch timer

Table 5.9.4.1 shows the stopwatch timer control bits.
Address Bit Name
00FF42 D7 –
–
D6 – –
D5 –
–
D4 – –
D3 –
–
D2 – –
D1 SWRST
Stopwatch timer reset
D0 SWRUN Stopwatch timer Run/Stop control
00FF43 D7 SWD7
Stopwatch timer data
D6 SWD6
D5 SWD5
BCD (1/10 sec)
D4 SWD4
D3 SWD3
Stopwatch timer data
D2 SWD2
D1 SWD1
BCD (1/100 sec)
D0 SWD0
00FF20 D7 PK01
K00–K07 interrupt priority register
D6 PK00
D5 PSIF1
Serial interface interrupt priority register
D4 PSIF0
D3 PSW1
Stopwatch timer interrupt priority register
D2 PSW0
D1 PTM1
Clock timer interrupt priority register
D0 PTM0
00FF22 D7 – –
D6 ESW100
Stopwatch timer 100 Hz interrupt enable register
D5 ESW10 Stopwatch timer 10 Hz interrupt enable register
D4 ESW1
Stopwatch timer 1 Hz interrupt enable register
D3 ETM32 Clock timer 32 Hz interrupt enable register
D2 ETM8
Clock timer 8 Hz interrupt enable register
D1 ETM2 Clock timer 2 Hz interrupt enable register
D0 ETM1
Clock timer 1 Hz interrupt enable register
00FF24 D7 – –
D6 FSW100
Stopwatch timer 100 Hz interrupt factor flag
D5 FSW10 Stopwatch timer 10 Hz interrupt factor flag
D4 FSW1
Stopwatch timer 1 Hz interrupt factor flag
D3 FTM32 Clock timer 32 Hz interrupt factor flag
D2 FTM8
Clock timer 8 Hz interrupt factor flag
D1 FTM2 Clock timer 2 Hz interrupt factor flag
D0 FTM1
Clock timer 1 Hz interrupt factor flag
74
Table 5.9.4.1 Stopwatch timer control bits
Function
EPSON
1 0 SR R/W
–
– –
–
– –
–
– –
–
– –
–
– –
–
– –
–
Reset No operation
0
Run Stop
0
0
0
0
0
0
0
0
0
0
PK01 PK00
PSIF1 PSIF0
0
PSW1 PSW0 Priority
0
PTM1 PTM0 level
1 1 Level 3
0
1 0 Level 2
0
0 1 Level 1
0 0 Level 0
0
0
–
– –
0
0
0
Interrupt Interrupt
0
enable disable
0
0
0
–
– –
0
(R) (R)
0
Interrupt No interrupt
0
factor is factor is
0
generated generated
0
(W) (W)
0
Reset No operation
0
E0C88832/88862 TECHNICAL MANUAL
Comment
Constantly "0" when
being read
W
R/W
R
R
R
R
R
R
R
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
"0" when being read
R/W
R/W
R/W
R/W
R/W
R/W
R/W
"0" when being read
R/W
R/W
R/W
R/W
R/W
R/W
R/W