230
Table 10.3
Register Configuration (cont)
Channel Name
Abbrevi-
ation
R/W
Initial
Value
Address
*
1
Access
Size
4 (cont)
Timer counter 4
TCNT4
R/W
H'00
H'5FFFF36
8, 16
H'5FFFF37
8, 16
General register A4
GRA4
R/W
H'FF
H'5FFFF38
8, 16, 32
H'5FFFF39
8, 16, 32
General register B4
GRB4
R/W
H'FF
H'5FFFF3A
8, 16, 32
H'5FFFF3B
8, 16, 32
Buffer register A4
BRA4
R/W
H'FF
H'5FFFF3C
8, 16, 32
H'5FFFF3D
8, 16, 32
Buffer register B4
BRB4
R/W
H'FF
H'5FFFF3E
8, 16, 32
H'5FFFF3F
8, 16, 32
Notes:
*
1 Only the values of bits A27–A24 and A8–A0 are valid; bits A23–A9 are ignored. For
details on the register addresses, see section 8.3.5, Area Descriptions.
*
2 Only 0 can be written to clear flags.
10.2
ITU Register Descriptions
10.2.1
Timer Start Register (TSTR)
The timer start register (TSTR) is an eight-bit read/write register that starts and stops the timer
counters (TCNT) of channels 0–4. TSTR is initialized to H'E0 or H'60 by a reset and in standby
mode.
Bit:
7
6
5
4
3
2
1
0
Bit name:
—
—
—
STR4
STR3
STR2
STR1
STR0
Initial value:
*
1
1
0
0
0
0
0
R/W:
—
—
—
R/W
R/W
R/W
R/W
R/W
Note:
*
Undefined
Содержание HD6417032
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