Page 27
TMP89FM42
RA001
2.3.6
Operation Mode Control
2.3.6.1
STOP mode
The STOP mode is controlled by system control register 1 (SYSCR1) and the STOP mode release sig-
nals.
(1)
Start the STOP mode
The STOP mode is started by setting SYSCR1<STOP> to "1". In the STOP mode, the following
states are maintained:
1. Both the high-frequency and low-frequency clock oscillation circuits stop oscillation and all
internal operations are stopped.
2. The data memory, the registers and the program status word are all held in the states in
effect before STOP mode was started. The port output latch is determined by the value of
SYSCR1<OUTEN>.
3. The prescaler and the divider of the timing generator are cleared to "0".
4. The program counter holds the address of the instruction 2 ahead of the instruction (e.g.,
[SET (SYSCR1).7]) which started the STOP mode.
(2)
Release the STOP mode
The STOP mode is released by the following STOP mode release signals. It is also released by a
reset by the
RESET
pin, a power-on reset and a reset by the voltage detection circuits. When a reset is
released, the warm-up starts. After the warm-up is completed, the NORMAL1 mode becomes active.
1. Release by the STOP pin
Table 2-3 Operation Modes and Conditions
Operation mode
Oscillation circuit
CPU core
Watchdog
timer
Time base
timer
Other periph-
eral circuits
Machine cycle time
High-fre-
quency
Low-fre-
quency
Single clock
RESET
Oscillation
Stop
Reset
Reset
Reset
Reset
1 / fcgck [s]
NORMAL1
Operate
Operate
Operate
Operate
IDLE1
Stop
Stop
IDLE0
Stop
STOP
Stop
Stop
Å|
Dual clock
NORMAL2
Oscillation
Oscillation
Operate with
the high fre-
quency
Operate with
the high/low
frequency
Operate
Operate
1 / fcgck [s]
IDLE2
Stop
Stop
SLOW2
Operate with
the low fre-
quency
Operate with
the low fre-
quency
4/ fs [s]
SLOW1
Stop
Operate with
the low fre-
quency
Operate with
the low fre-
quency
SLEEP1
Stop
Stop
SLEEP0
Stop
STOP
Stop
Stop
Å|
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: ......