upd78f0134hgka1-9et-a Renesas Electronics Corporation., upd78f0134hgka1-9et-a Datasheet - Page 153

• Manufacturer Part Number: upd78f0134hgka1-9et-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

(5) Port mode register 0 (PM0)
Cautions 1. When the internal oscillation clock is selected as the clock to be supplied to the CPU, the
Remarks 1. f
This register sets port 0 input/output in 1-bit units.
When using the P01/TO00/TI010 and P06/TO01
output latch of P01 and P06 to 0.
When using the P01/TO00/TI010 and P06/TO01
this time, the output latch of P01 and P06 may be 0 or 1.
PM0 can be set by a 1-bit or 8-bit memory manipulation instruction.
RESET input sets PM0 to FFH.
Note Available only for the PD78F0133H, 78F0134H, 78F0136H, 78F0138H, and 78F0138HD.
2. Figures in parentheses are for operation with f
2. Always set data to PRM01 after stopping the timer operation.
3. If the valid edge of the TI001 pin is to be set for the count clock, do not set the clear & start
4. If the TI001 or TI011 pin is high level immediately after system reset, the rising edge is
5. When the valid edge of the TI011 pin is used, P06 cannot be used as the timer output pin
X
clock of the internal oscillator is divided and supplied as the count clock. If the count clock
is the internal oscillation clock, the operation of 16-bit timer/event counter 00 is not
guaranteed.
selected and supplied to the CPU, the operation of 16-bit timer/event counter 00 is not
guaranteed, either, because the internal oscillation clock is supplied as the sampling clock to
eliminate noise.
mode using the valid edge of the TI001 pin and the capture trigger.
immediately detected after the rising edge or both the rising and falling edges are set as the
valid edge(s) of the TI001 pin or TI011 pin to enable the operation of 16-bit timer counter 01
(TM01). Care is therefore required when pulling up the TI001 or TI011 pin. However, if the
TI001 or TI011 pin is high level when re-enabling operation after the operation has been
stopped, the rising edge is not detected.
(TO01). When P06 is used as the TO01 pin, the valid edge of the TI011 pin cannot be used.
: High-speed system clock oscillation frequency
CHAPTER 6 16-BIT TIMER/EVENT COUNTERS 00 AND 01
Address: FF20H
Symbol
Figure 6-14. Format of Port Mode Register 0 (PM0)
PM0
When an external clock is used and when the internal oscillation clock is
PM0n
7
1
0
1
PM06
Output mode (output buffer on)
Input mode (output buffer off)
User’s Manual U16899EJ3V0UD
6
After reset: FFH
P0n pin I/O mode selection (n = 0 to 6)
PM05
5
Note
Note
/TI011
PM04
/TI011
4
X
Note
PM03
Note
= 10 MHz.
R/W
3
pins for timer output, set PM01 and PM06 and the
pins for timer input, set PM01 and PM06 to 1. At
PM02
2
PM01
1
PM00
0
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