R01UH0092EJ0110 Rev.1.10
Page 256 of 807
Jul 31, 2012
M16C/64C Group
17. Timer A
17.2.1
Peripheral Clock Select Register (PCLKR)
Set the PRC0 bit in the PRCR register to 1 (write enabled) before rewriting this register.
17.2.2
Clock Prescaler Reset Flag (CPSRF)
Peripheral Clock Select Register
b7
0
0
0
0
0
b6 b5 b4
b1
b2
b3
Symbol
PCLKR
Address
0012h
Bit Symbol
Bit Name
RW
Reset Value
0000 0011b
b0
Function
—
(b4-b2)
RW
Reserved bits
Set to 0
—
(b7-b6)
RW
Reserved bits
Set to 0
PCLK5
RW
Clock output function
expansion bit
(enabled in single-chip mode)
0: Selected by setting bits CM01 to CM00
in the CM0 register
1: Output f1
PCLK0
Timers A and B clock select bit
(clock source for timers A and
B, the dead time timer, and
multi-master I
2
C-bus interface)
0: f2TIMAB/f2IIC
1: f1TIMAB/f1IIC
RW
PCLK1
RW
SI/O clock select bit
(clock source for UART0 to
UART2, UART5 to UART7,
SI/O3, and SI/O4)
0: f2SIO
1: f1SIO
Clock Prescaler Reset Flag
b7 b6 b5 b4
b1
b2
b3
Symbol
CPSRF
Address
0015h
Bit Symbol
Bit Name
RW
Reset Value
0XXX XXXXb
b0
Function
—
(b6-b0)
—
No register bits. If necessary, set to 0. The read values are undefined.
CPSR
RW
Clock prescaler reset flag
Setting this bit to 1 initializes the prescaler
for the timekeeping clock.
(The read value is 0.)
Содержание M16C Series
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