ST92F150JDV1 STMicroelectronics, ST92F150JDV1 Datasheet - Page 163
ST92F150JDV1
Manufacturer Part Number
ST92F150JDV1
Description
8-bit MCU
Manufacturer
STMicroelectronics
Datasheet
1.ST92F150CR1.pdf
(429 pages)
Specifications of ST92F150JDV1
Internal Memory
Single Voltage FLASH up to 256 Kbytes, RAM up to 8Kbytes, 1K byte E3 (Emulated EEPROM)
Minimum Instruction Time
83 ns (24 MHz int. clock)
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TIMER/WATCHDOG (Cont’d)
Bit 3 = INEN: Input Enable.
This bit is set and cleared by software.
0: Disable input section
1: Enable input section
Bit 2 = OUTMD: Output Mode.
This bit is set and cleared by software.
0: The output is toggled at every End of Count
1: The value of the WROUT bit is transferred to the
Bit 1 = WROUT: Write Out.
The status of this bit is transferred to the Output
pin when OUTMD is set; it is user definable to al-
low PWM output (on Reset WROUT is set).
Bit 0 = OUTEN: Output Enable bit.
This bit is set and cleared by software.
0: Disable output
1: Enable output
WAIT CONTROL REGISTER (WCR)
R252 - Read/Write
Register Page: 0
Reset value: 0111 1111 (7Fh)
Bit 6 = WDGEN: Watchdog Enable (active low).
Resetting this bit via software enters the Watch-
dog mode. Once reset, it cannot be set any more
7
x
output pin on every End Of Count if OUTEN=1.
WDGEN
x
x
x
x
x
0
x
by the user program. At System Reset, the Watch-
dog mode is disabled.
Note: This bit is ignored if the Hardware Watchdog
option is enabled by pin HW0SW1 (if available).
EXTERNAL INTERRUPT VECTOR REGISTER
(EIVR)
R246 - Read/Write
Register Page: 0
Reset value: xxxx 0110 (x6h)
Bit 2 = TLIS: Top Level Input Selection.
This bit is set and cleared by software.
0: Watchdog End of Count is TL interrupt source
1: NMI is TL interrupt source
Bit 1 = IA0S: Interrupt Channel A0 Selection.
This bit is set and cleared by software.
0: Watchdog End of Count is INTA0 source
1: External Interrupt pin is INTA0 source
Warning: To avoid spurious interrupt requests,
the IA0S bit should be accessed only when the in-
terrupt logic is disabled (i.e. after the DI instruc-
tion). It is also necessary to clear any possible in-
terrupt pending requests on channel A0 before en-
abling this interrupt channel. A delay instruction
(e.g. a NOP instruction) must be inserted between
the reset of the interrupt pending bit and the IA0S
write instruction.
Other bits are described in the Interrupt section.
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x
x
x
TIMER/WATCHDOG (WDT)
x
x
TLIS IA0S
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