Electronics America Computer Hardware User Manual

162
µ PD78214 Sub-Series
Fig. 7-66 Block Diagram of 8-Bit Timer/Counter 2
External interrupt mode register
INTC21
RESET
8
8
8
8
8
8
8
1/8
ES21 ES20 ES11 ES10(INTM0)
INTP1
INTP1
INTP2/CI
INTP2
MPX
Edge detector
PRS23 PRS22 PRS21 PRS20
Edge detector
f
CLK/512
fCLK/256 f
CLK/128
f
CLK/64
fCLK/32 f
CLK/16
Prescaler mode register (PRM1)
8
RESET
Internal bus
8-bit timer 2 (TM2)
Capture trigger
Capture register (CR22)
8
Clear
Overflow
Coincidence
Coincidence
8
Compare register (CR21)
Compare register (CR20)
8
MOD1
MOD0
CLR22 CLR21
8
Timer control register (TMC1)
CE2
OVF2
CMD2
PWM/PPG output control
Capture/compare control register (CRC2)
ENT03 ALV3 ENT02
ALV2
P36/TO2 P37/TO3
Output control circuit
INTC20
Output control circuit
Timer output control register (TOC)
RESET