HD64F3437TF16 Datasheet, PDF (220/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

9.1.3 Input and Output Pins
Table 9.1 lists the input and output pins of the 8-bit timer.
Table 9.1 Input and Output Pins of 8-Bit Timer
Abbreviation*
Name
Channel 0 Channel 1 I/O
Function
Timer output
TMO₀
TMO₁
Output Output controlled by compare-match
Timer clock input TMCI₀
TMCI₁
Input
External clock source for the counter
Timer reset input TMRI₀
TMRI₁
Input
External reset signal for the counter
Note: * In this manual, the channel subscript has been deleted, and only TMO TMCI, and TMRI are
used.
9.1.4 Register Configuration
Table 9.2 lists the registers of the 8-bit timer module. Each channel has an independent set of
registers.
Table 9.2 8-Bit Timer Registers
Channel Name
Abbreviation R/W Initial Value Address
0
Timer control register
TCR
R/W H'00
H'FFC8
Timer control/status register TCSR
R/(W)* H'10
H'FFC9
Time constant register A
TCORA
R/W H'FF
H'FFCA
Time constant register B
TCORB
R/W H'FF
H'FFCB
Timer counter
TCNT
R/W H'00
H'FFCC
1
Timer control register
TCR
R/W H'00
H'FFD0
Timer control/status register TCSR
R/(W)* H'10
H'FFD1
Time constant register A
TCORA
R/W H'FF
H'FFD2
Time constant register B
TCORB
R/W H'FF
H'FFD3
Timer counter
TCNT
R/W H'00
H'FFD4
0, 1
Serial/timer control register STCR
R/W H'00
H'FFC3
Note: * Software can write a 0 to clear bits 7 to 5, but cannot write a 1 in these bits.
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