NEC 78K0 Series User Manual page 235

8-bit single-chip microcontrollers
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CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 AND 01
Figure 7-56. Example of Register Settings for Pulse Width Measurement (1/2)
(a) 16-bit timer mode control register 0n (TMC0n)
0
0
0
(b) Capture/compare control register 0n (CRC0n)
0
0
0
(c) 16-bit timer output control register 0n (TOC0n)
OSPT0n
OSPE0n
0
0
0
(d) Prescaler mode register 0n (PRM0n)
ES1n1
ES1n0
ES0n1
0/1
0/1
0/1
µ
Remark n = 0:
PD78F0531, 78F0532, 78F0533
µ
n = 0, 1:
PD78F0534, 78F0535, 78F0536, 78F0537, 78F0537D
TMC0n3 TMC0n2 TMC0n1
0
0/1
0/1
CRC0n2 CRC0n1 CRC0n0
0
0
1
TOC0n4
LVS0n
LVR0n
0
0
0
ES0n0
3
2
0/1
0
0
Preliminary User's Manual U17260EJ3V1UD
OVF0n
0
0
01: Free running timer mode
10: Clear and start mode entered
by valid edge of TI00n pin.
0/1
1
1: CR00n used as capture register
0: TI01n pin is used as capture
trigger of CR00n.
1: Reverse phase of TI00n pin is
used as capture trigger of CR00n.
1: CR01n used as capture register
TOC0n1
TOE0n
0
0
PRM0n1 PRM0n0
0/1
0/1
Selects count clock
(setting valid edge of TI00n is prohibited)
00: Falling edge detection
01: Rising edge detection
10: Setting prohibited
11: Both edges detection
(setting when CRC0n1 = 1 is prohibited)
00: Falling edge detection
01: Rising edge detection
10: Setting prohibited
11: Both edges detection
235

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