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R01UH0336EJ0102 Rev.1.02
Page 1027 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 19 Timer Option Module (TAPA)
(4)
TAPAnACWE - TAPAn Asynchronous Control Write Enable Register
This register enables writing for asynchronous Hi-Z control.
Access
This register can be read/written in 8-bit units.
Address
<
TAPAn_base1
> + 04
H
Initial value
00
H
This register is initialized by a reset from any source.
(5)
TAPAnACTS - Asynchronous Control Start Trigger Register
This register enables the start trigger for asynchronous Hi-Z control.
Access
This register can be read/written in 8-bit units.
Address
<
TAPAn_base1
> + 08
H
Initial value
00
H
This register is initialized by a reset from any source.
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
TAPAn
ACWE
R
R
R
R
R
R
R
R/W
Table 19-13
Contents of the TAPAnACWE Register
Bit Position
Bit Name
Function
0
TAPAn
ACWE
Asynchronous control write enable bit
This is a write-enable bit for asynchronous Hi-Z control.
After 1 has been written to this bit, it is automatically cleared to 0 by writing 1 to
TAPAnACTS and TAPAnACTT.
0: Disables writing to TAPAnACTS and TAPAnACTT.
1: Enables writing to TAPAnACTS and TAPAnACTT.
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
TAPAn
ACTS
R
R
R
R
R
R
R
W
Table 19-14
Contents of the TAPAnACTS Register
Bit Position
Bit Name
Function
0
TAPAn
ACTS
Asynchronous control start trigger bit
This bit enables the start trigger for asynchronous Hi-Z control.
The setting of this bit is only valid when TAPAnACWE = 1.
0: Writing 0 to this bit is ignored (no function).
1: Enables asynchronous Hi-Z control if TAPAnACE = 1.