ST92F150JDV1 STMicroelectronics, ST92F150JDV1 Datasheet - Page 107
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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INTERRUPT REGISTERS (Cont’d)
EXTERNAL INTERRUPT PENDING REGISTER
(EIPR)
R243 - Read/Write
Register Page: 0
Reset value: 0000 0000 (00h)
Bit 7 = IPD1: INTD1 Interrupt Pending bit
Bit 6 = IPD0: INTD0 Interrupt Pending bit
Bit 5 = IPC1: INTC1 Interrupt Pending bit
Bit 4 = IPC0: INTC0 Interrupt Pending bit
Bit 3 = IPB1: INTB1 Interrupt Pending bit
Bit 2 = IPB0: INTB0 Interrupt Pending bit
Bit 1 = IPA1: INTA1 Interrupt Pending bit
Bit 0 = IPA0: INTA0 Interrupt Pending bit
These bits are set by hardware on occurrence of a
trigger event (as specified in the EITR register)
and are cleared by hardware on interrupt acknowl-
edge. They can also be set by software to imple-
ment a software interrupt.
0: No interrupt pending
1: Interrupt pending
EXTERNAL INTERRUPT MASK-BIT REGISTER
(EIMR)
R244 - Read/Write
Register Page: 0
Reset value: 0000 0000 (00h)
Bit 7 = IMD1: INTD1 Interrupt Mask
Bit 6 = IMD0: INTD0 Interrupt Mask
Bit 5 = IMC1: INTC1 Interrupt Mask
Bit 4 = IMC0: INTC0 Interrupt Mask
IMD1 IMD0 IMC1 IMC0 IMB1 IMB0 IMA1 IMA0
IPD1 IPD0
7
7
IPC1
IPC0 IPB1 IPB0 IPA1 IPA0
0
0
Bit 3 = IMB1: INTB1 Interrupt Mask
Bit 2 = IMB0: INTB0 Interrupt Mask
Bit 1 = IMA1: INTA1 Interrupt Mask
Bit 0 = IMA0: INTA0 Interrupt Mask
These bits are set and cleared by software.
0: Interrupt masked
1: Interrupt not masked (an interrupt is generated if
EXTERNAL INTERRUPT PRIORITY LEVEL
REGISTER (EIPLR)
R245 - Read/Write
Register Page: 0
Reset value: 1111 1111 (FFh)
Bits 7:6 = PL2D, PL1D: INTD0, D1 Priority Level.
Bis 5:4 = PL2C, PL1C: INTC0, C1 Priority Level.
Bits 3:2 = PL2B, PL1B: INTB0, B1 Priority Level.
Bits 1:0 = PL2A, PL1A: INTA0, A1 Priority Level.
These bits are set and cleared by software.
The priority is a three-bit value. The LSB is fixed by
hardware at 0 for Channels A0, B0, C0 and D0 and
at 1 for Channels A1, B1, C1 and D1.
PL2D PL1D PL2C PL1C PL2B PL1B PL2A PL1A
PL2x
the IPxx and IEN bits = 1)
7
0
0
1
1
ST92F124/F150/F250 - INTERRUPTS
PL1x
0
1
0
1
Hardware
bit
0
1
0
1
0
1
0
1
0 (Highest)
1
2
3
4
5
6
7 (Lowest)
Priority
107/429
0
9
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