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Section 9 Timers
Rev. 6.00 Sep 12, 2006 page 206 of 526
REJ09B0326-0600
Register Configuration
Table 9.3 shows the register configuration of timer A.
Table 9.3
Timer A Registers
Name Abbr.
R/W
Initial
Value
Address
Timer mode register A
TMA
R/W
H'10
H'FFB0
Timer counter A
TCA
R
H'00
H'FFB1
9.2.2 Register
Descriptions
Timer Mode Register A (TMA)
Bit
7 6 5 4 3 2 1 0
TMA7
TMA6
TMA5
TMA3 TMA2 TMA1 TMA0
Initial
value 0 0 0 1 0 0 0 0
Read/Write R/W
R/W
R/W
R/W R/W R/W R/W
TMA is an 8-bit read/write register for selecting the prescaler, input clock, and output clock.
Upon reset, TMA is initialized to H'10.
Bits 7 to 5
Clock Output Select (TMA7 to TMA5):
Bits 7 to 5 choose which of eight clock
signals is output at the TMOW pin. The system clock divided by 32, 16, 8, or 4 can be output in
active mode and sleep mode. A 32.768 kHz signal divided by 32, 16, 8, or 4 can be output in
active mode, sleep mode, and subactive mode.
Bit 7: TMA7
Bit 6: TMA6
Bit 5: TMA5
Clock Output
0 0 0
φ
/32 (initial
value)
1
φ
/16
1 0
φ
/8
1
φ
/4
1 0 0
φ
W
/32
1
φ
W
/16
1 0
φ
W
/8
1
φ
W
/4
Summary of Contents for F-ZTAT H8/3642A Series
Page 6: ...Rev 6 00 Sep 12 2006 page iv of xx ...
Page 8: ...Rev 6 00 Sep 12 2006 page vi of xx ...
Page 22: ...Rev 6 00 Sep 12 2006 page xx of xx ...
Page 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Page 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Page 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Page 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Page 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Page 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...