HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 677

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

Bit 0—Input Capture/Output Compare Flag A (TGFA): Status flag that indicates the occurrence of
TGRA input capture or compare match.
Bit 0: TGFA
0
1
16.2.6
Channel 0: TCNT0 (up-counter)
Channel 1: TCNT1 (up/down-counter*)
Channel 2: TCNT2 (up/down-counter*)
Note: * These counters can be used as up/down-counters only in phase counting mode. In other
The TCNT registers are 16-bit counters. The TPU has three TCNT counters, one for each channel.
The TCNT counters are initialized to H'0000 by a reset.
The TCNT counters cannot be accessed in 8-bit units; they must always be accessed as a 16-bit
unit.
Initial value:
Initial value:
cases they function as up-counters.
Timer Counter (TCNT)
R/W:
R/W:
Bit:
Bit:
Description
[Clearing conditions]
[Setting conditions]
R/W
R/W
When DMAC is activated by TGIA interrupt while DRCR setting in DMAC is
TGI0A
When 0 is written to TGFA after reading TGFA = 1
When TCNT = TGRA while TGRA is functioning as output compare register
When TCNT value is transferred to TGRA by input capture signal while
TGRA is functioning as input capture register
15
0
7
0
R/W
R/W
14
0
6
0
R/W
R/W
13
0
5
0
R/W
R/W
12
0
4
0
R/W
R/W
11
0
3
0
R/W
R/W
10
0
2
0
R/W
R/W
9
0
1
0
(Initial value)
R/W
R/W
8
0
0
0
665