Datasheet

Section 10 Timer A
Rev.5.00 Nov. 02, 2005 Page 132 of 418
REJ09B0028-0500
φ
W
TMOW
φ
φ
W
/32
φ
W
/16
φ
W
/8
φ
W
/4
φ
W
/32
φ
W
/16
φ
W
/8
φ
W
/4
φ
/8192, φ/4096,
φ/2048, φ/512,
φ/256, φ/128,
φ/32, φ/8
φ
W
/128
φ
W
/4
1/4
PSW
PSS
TMA
TCA
IRRTA
÷8* ÷64* ÷128* ÷256*
[Legend]
TMA: Timer mode register A
TCA: Timer counter A
IRRTA: Timer A overflow interrupt request flag
PSW: Prescaler W
PSS: Prescaler S
Note: * Can be selected only when the prescaler W output (φ
W
/128) is used as the TCA input clock.
Internal data bus
Figure 10.1 Block Diagram of Timer A
10.2 Input/Output Pins
Table 10.1 shows the timer A input/output pin.
Table 10.1 Pin Configuration
Name Abbreviation I/O Function
Clock output TMOW Output Output of waveform generated by timer A output
circuit