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13. 16-bit Timer Counter (TCA)
13.4 Timer Function
TMP89FM42
RA001
Figure 13-2 Timer Mode Timing Chart
Source clock
Counter
Timer start
1
0
n
m
Write to TA0DRAL
Write to TA0DRAH
TA0DRAL
Match detection
Write n
Write s
Write m
Write r
Reflected by writing to TA0DRAH
Reflected by writing to TA0DRAH
Reflected by
an interrupt
Reflected at the same time as data
is written into TA0DRAH while
the timer is stopped
Counter clear
INTTCA interrupt request
2
3
4
mn-1
mn
0
1
rs
0
1
2
2
0
3
TA0DRAH
TA0CR<TA0S>
s
r
Timer stop
Match detection
Counter clear
rs-1
TA0MOD<TA0DBE>
When the double buffer is disabled (TA0MOD<TA0DBE>=”0”)
Source clock
Counter
Timer start
1
0
n
m
Write to TA0DRAL
Write to TA0DRAH
TA0DRAL
Match detection
Write n
Write s
Write m
Write r
Counter clear
INTTCA interrupt request
2
3
4
mn-1
mn
0
1
mn
0
1
2
3
TA0DRAH
TA0CR<TA0S>
s
r
n
Temporary buffer
(8 bits)
s
n
Temporary buffer
(8 bits)
s
mn
Double buffer
(16 bits)
rs
Match detection
Match detection
Counter clear
0
1
mn-1
rs
rs-1
TA0MOD<TA0DBE>
When the double buffer is enabled (TA0MOD<TA0DBE>=”1”)
Summary of Contents for TLCS-870/C1 Series
Page 1: ...8 Bit Microcontroller TLCS 870 C1 Series TMP89FM42 查询TMP89FM42供应商 捷多邦 专业PCB打样工厂 24小时加急出货 ...
Page 3: ...Revision History Date Revision 2007 10 25 1 First Release 2007 11 3 2 Contents Revised ...
Page 4: ......
Page 14: ......
Page 18: ...1 3 Block Diagram TMP89FM42 1 3 Block Diagram Figure 1 2 Block Diagram ...
Page 22: ...1 4 Pin Names and Functions TMP89FM42 ...
Page 60: ...2 CPU Core 2 5 Revision History TMP89FM42 ...
Page 76: ...3 Interrupt Control Circuit 3 8 Revision History TMP89FM42 ...
Page 86: ...4 External Interrupt control circuit 4 3 Function TMP89FM42 ...
Page 102: ...7 Voltage Detection Circuit 7 5 Revision History TMP89FM42 ...
Page 126: ...8 I O Ports 8 3 I O Port Registers TMP89FM42 Note 2 i 0 to 1 ...
Page 136: ...8 I O Ports 8 5 Revision History TMP89FM42 ...
Page 142: ...9 Special Function Registers 9 3 SFR3 0x0E40 to 0x0EFF TMP89FM42 ...
Page 146: ...10 Low Power Consumption Function for Peripherals TMP89FM42 ...
Page 149: ...TMP89FM42 11 3 Revision History Rev Description RA001 Deleted SLEEP2 description ...
Page 150: ...11 Divider Output DVO 11 3 Revision History TMP89FM42 ...
Page 220: ...15 Real Time Clock RTC 15 4 Real Time Clock Operation TMP89FM42 ...
Page 250: ...16 Asynchronous Serial Interface UART 16 15 Revision History TMP89FM42 ...
Page 302: ...18 Serial Bus Interface SBI 18 7 Revision History TMP89FM42 ...
Page 338: ...21 Flash Memory 21 4 Toggle Bit D6 TMP89FM42 ...
Page 384: ...22 Serial PROM Mode 22 15 Revision History TMP89FM42 ...
Page 388: ...24 Input Output Circuit 24 1 Control Pins TMP89FM42 ...
Page 404: ...25 Electrical Characteristics 25 11 Revision History TMP89FM42 ...
Page 406: ...26 Package Dimensions TMP89FM42 ...
Page 408: ......