ST72321J7-Auto STMicroelectronics, ST72321J7-Auto Datasheet - Page 236
ST72321J7-Auto
Manufacturer Part Number
ST72321J7-Auto
Description
8-bit MCU for automotive with 48 Kbyte Flash, 10-bit ADC, timers, SPI, SCI and I2C interfaces
Manufacturer
STMicroelectronics
Datasheet
1.ST72321R9-AUTO.pdf
(243 pages)
Specifications of ST72321J7-Auto
Hdflash Endurance
100 cycles, data retention 20 years
Clock Sources
crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
4 Power Saving Modes
Halt, Active Halt, Wait and Slow
- Current page: 236 of 243
- Download datasheet (3Mb)
Known limitations
236/243
; check the semaphore status if edge is detected
CP A,#01
jrne OUT
call call_routine
; call the interrupt routine
OUT:LD A,#00
LD sema,A
.call_routine
; entry to call_routine
PUSH A
PUSH X
PUSH CC
.ext1_rt
; entry to interrupt routine
LD A,#00
LD sema,A
IRET
Case 2: Writing to PxOR or PxDDR with global interrupts disabled:
SIM
; set the interrupt mask
LD A,PFDR
AND A,#$02
LD
; store the level before writing to PxOR/PxDDR
LD A,#$90
LD PFDDR,A
; Write into PFDDR
LD A,#$ff
LD PFOR,A
LD A,PFDR
AND A,#$02
LD Y,A
; store the level after writing to PxOR/PxDDR
LD A,X
X,A
; Write to PFOR
Doc ID 13829 Rev 1
ST72321xx-Auto
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