ST62E32BF1 STMicroelectronics, ST62E32BF1 Datasheet - Page 32

• Manufacturer Part Number: ST62E32BF1
• Description: 8-bit Microcontrollers - MCU UV EPROM 8K SPI/UART
• Manufacturer: STMicroelectronics

Specifications of ST62E32BF1

• Product Category: 8-bit Microcontrollers - MCU
• Core: ST6
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Program Memory Size: 7948 B
• Data Ram Size: 192 B
• On-chip Adc: Yes
• Package / Case: SDIP-42
• Mounting Style: Through Hole
• A/d Bit Size: 8 bit
• A/d Channels Available: 21
• Data Rom Size: 128 B
• Interface Type: SPI, UART
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Number Of Programmable I/os: 30
• Number Of Timers: 1 x 8 bit
• Program Memory Type: EPROM
• Factory Pack Quantity: 13
• Supply Voltage - Max: 5 V
• Supply Voltage - Min: 4.5 V

ST62T32B ST62E32B
IINTERRUPTS (Cont’d)
Interrupt Polarity Register (IPR)
Address: DAh — Read/Write
In conjunction with IOR register ESB bit, the polar-
ity of I/O pins triggered interrupts can be selected
by setting accordingly the Interrupt Polarity Regis-
ter (IPR). If a bit in IPR is set to one the corre-
sponding port interrupt is inverted (e.g. IPR bit 2 =
1 ; port C generates interrupt on rising edge. At re-
Table 12.
32/83
7
-
GEN
GEN
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
0
-
I/O Interrupts selections according to IPR, IOR programming
IPR3
IPR4
X
X
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
IPR2
-
0
1
PortE PortD PortC PortA PortB
IPR0
IPR1
0
0
1
1
0
0
1
1
X
0
0
1
1
0
0
1
1
X
IOR5
IOR6
0
1
0
1
0
1
0
1
X
0
1
0
1
0
1
0
1
X
Port C occurence
0
falling edge
rising edge
Port B occurence
Port A occurence
falling edge
falling edge
falling edge
falling edge
falling edge
falling edge
rising edge
rising edge
rising edge
rising edge
rising edge
rising edge
high level
high level
Disabled
low level
low level
Disabled
set, IPR is cleared and all port interrupts are not in-
verted (e.g. Port C generates interrupts on falling
edges).
Bit 7 - Bits 5 = Unused .
Bit 4 = Port E Interrupt Polarity .
Bit 3 = Port D Interrupt Polarity .
Bit 2 = Port C Interrupt Polarity .
Bit 1= Port A Interrupt Polarity .
Bit 0 = Port B Interrupt Polarity .
Port D occurence
Port E occurence
falling edge
falling edge
falling edge
falling edge
falling edge
falling edge
rising edge
rising edge
rising edge
rising edge
rising edge
rising edge
high level
high level
Disabled
low level
low level
Disabled
Interrupt source
0
Interrupt
Interrupt
source
source
2
1