HD6437101 RENESAS [Renesas Technology Corp], HD6437101 Datasheet - Page 183

• Manufacturer Part Number: HD6437101
• Description: 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

8.3.6
The TCNT registers are 16-bit readable/writable counters. The MTU has five TCNT counters, one
for each channel. The initial value is H'0000.
Access to TCNT in 8-bit units is not allowed. Applications must always access TCNT in 16-bit
units. Note that TCNT is initialized to H'0000 by a reset.
Bit
1
0
Bit Name
TGFB
TGFA
Timer Counter (TCNT)
Initial
value
0
0
R/W
R/(W)
R/(W)
Description
Input Capture/Output Compare Flag B
Status flag that indicates the occurrence of TGRB input
capture or compare match. Only 0 can be written, for flag
clearing.
[Setting conditions]
•
•
[Clearing condition]
•
Input Capture/Output Compare Flag A
Status flag that indicates the occurrence of TGRA input
capture or compare match. Only 0 can be written, for flag
clearing.
[Setting conditions]
•
•
[Clearing condition]
•
When TCNT = TGRB and TGRB is functioning as
output compare register
When TCNT value is transferred to TGRB by input
capture signal and TGRB is functioning as input
capture register
When 0 is written to TGFB after reading TGFB = 1
When TCNT = TGRA and TGRA is functioning as
output compare register
When TCNT value is transferred to TGRA by input
capture signal and TGRA is functioning as input
capture register
When 0 is written to TGFA after reading TGFA = 1
Section 8 Multifunction Timer Pulse Unit (MTU)
Rev.1.00 Sep. 18, 2008 Page 149 of 522
REJ09B0069-0100