Page 222
18. Key-on Wakeup (KWU)
18.3 Function
T
5CL8
Also, each level of the STOP0 to STOP3 pins can be confirmed by reading corresponding I/O port data register,
check all STOP0 to STOP3 pins "H" that is enabled by STOPCR before the STOP mode is started (Note2,3).
Note 1: When the STOP mode released by the edge release mode (SYSCR1<RELM> = “0”), inhibit input from STOP0 to
STOP3 pins by Key-on Wakeup Control Register (STOPCR) or must be set "H" level into STOP0 to STOP3 pins
that are available input during STOP mode.
Note 2: When the
STOP
pin input is high or STOP0 to STOP3 pins input which is enabled by STOPCR is low, executing an
instruction which starts STOP mode will not place in STOP mode but instead will immediately start the release
sequence (Warm up).
Note 3: The input circuit of Key-on Wakeup input and Port input is separated, so each input voltage threshold value is dif-
ferent. Therefore, a value comes from port input before STOP mode start may be different from a value which is
detected by Key-on Wakeup input (Figure 18-2).
Note 4:
STOP
pin doesn’t have the control register such as STOPCR, so when STOP mode is released by STOP0 to
STOP3 pins,
STOP
pin also should be used as STOP mode release function.
Note 5: In STOP mode, Key-on Wakeup pin which is enabled as input mode (for releasing STOP mode) by Key-on
Wakeup Control Register (STOPCR) may generate the penetration current, so the said pin must be disabled AD
conversion input (analog voltage input).
Note 6: When the STOP mode is released by STOP0 to STOP3 pins, the level of
STOP
pin should hold "L" level (Figure
18-3).
Figure 18-2 Key-on Wakeup Input and Port Input
Figure 18-3 Priority of
STOP
pin and STOP0 to STOP3 pins
Table 18-1 Release level (edge) of STOP mode
Pin name
Release level (edge)
SYSCR1<RELM>="1"
(Note2)
SYSCR1<RELM>="0"
STOP
"H" level
Rising edge
STOP0
"L" level
Don’t use (Note1)
STOP1
"L" level
Don’t use (Note1)
STOP2
"L" level
Don’t use (Note1)
STOP3
"L" level
Don’t use (Note1)
Port input
External pin
Key-on wakeup
input
STOP pin
a) STOP
Release
STOP mode
STOP mode
STOP pin "L"
b)
Release
STOP mode
STOP mode
In case of STOP0 to STOP3
STOP0 pin
Содержание CEM2100/00
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Страница 126: ...Page 4 1 3 Block Diagram T5CL8 1 3 Block Diagram Figure 1 2 Block Diagram ...
Страница 130: ...Page 8 1 4 Pin Names and Functions T5CL8 ...
Страница 155: ...Page 33 T5CL8 ...
Страница 156: ...Page 34 2 Operational Description 2 3 Reset Circuit T5CL8 ...
Страница 186: ...Page 64 5 I O Ports 5 8 Port P7 P77 to P70 T5CL8 ...
Страница 194: ...Page 72 6 Watchdog Timer WDT 6 3 Address Trap T5CL8 ...
Страница 214: ...Page 92 8 16 Bit TimerCounter 1 TC1 8 3 Function T5CL8 ...
Страница 270: ...Page 148 12 Asynchronous Serial interface UART1 12 9 Status Flag T5CL8 ...
Страница 280: ...Page 158 13 Asynchronous Serial interface UART2 13 9 Status Flag T5CL8 ...
Страница 332: ...Page 210 16 Serial Bus Interface I2C Bus Ver D SBI 16 6 Data Transfer of I2C Bus T5CL8 ...
Страница 342: ...Page 220 17 10 bit AD Converter ADC 17 6 Precautions about AD Converter T5CL8 ...
Страница 354: ...Page 232 19 Flash Memory 19 4 Access to the Flash Memory Area T5CL8 ...
Страница 388: ...Page 266 21 Input Output Circuit 21 2 Input Output Ports T5CL8 ...
Страница 397: ...Page 275 T5CL8 23 Package Dimensions LQFP64 P 1010 0 50D Rev 01 Unit mm ...
Страница 398: ...Page 276 23 Package Dimensions T5CL8 ...
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