psd511b1 STMicroelectronics, psd511b1 Datasheet - Page 13

• Manufacturer Part Number: psd511b1
• Description: Low Cost Field Programmable Microcontroller Peripherals
• Manufacturer: STMicroelectronics

Table 2.
PSD5XX Pin
Descriptions
(Cont.)
10
PSD5XX Family
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
VSTBY
V
GND
Pin Name
CC
Port PE, pin 0
1. BHE
2. PSEN
3. WRH
4. UDS
5. SIZ0
6. PE0
7. PE0
8. PE0
Port PE, pin 1
1. ALE
2. PE1
3. PE1
4. PE1
Port PE, pin 2
1. Intr Out
2. PE2
3. PE2
4. PE2
Port PE, pin 3
1. Timer0-In
2. PE3
3. PE3
4. PE3
Port PE, pin 4
1. Timer1-In
2. PE4
3. PE4
4. PE4
5. TC0
Port PE, pin 5
1. Timer2-In
2. PE5
3. PE5
4. PE5
5. TC1
Port PE, pin 6
1. Timer3-In
2. PE6
3. PE6
4. PE6
5. TC2
Port PE, pin 7
1. APD CLK
2. PE7
3. PE7
4. PE7
5. TC3
VSTBY
V
GND
CC
Pin Function
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I
Multiple functions
1. High byte enable, 16 bit data
2. Read program memory, 8031 signal
4. Upper Data Strobe
5. Byte enable, 68300 signal
6. I/O pin
7. ZPLD I/O pin
8. Latched Address Out – A0
Multiple functions
1. Address strobe
2. I/O pin
3. ZPLD I/O pin
4. Latched Address Out – A1
Multiple functions
1. Interrupt Controller Output
2. I/O pin
3. ZPLD I/O pin
4. Latched Address Out – A2
Multiple functions
1. Timer0 control input
2. I/O pin
3. ZPLD I/O pin
4. Latched Address Out – A3
Multiple functions
1. Timer1 control input
2. I/O pin
3. ZPLD I/O pin
4. Latched Address Out – A4
5. Timer0 Terminal Count
Multiple functions
1. Timer2 control input
2. I/O pin
3. ZPLD I/O pin
4. Latched Address Out – A5
5. Timer1 Terminal Count
Multiple functions
1. Timer3 control input
2. I/O pin
3. ZPLD I/O pin
4. Latched Address Out – A6
5. Timer2 Terminal Count
Multiple functions
1. Automatic Power Down Clock Input
2. I/O pin
3. ZPLD I/O pin
4. Latched Address Out – A7
5. Timer3 Terminal Count
SRAM power pin for standby
operation (battery backup)
Chip V
Chip ground pin
write high data byte
Function Descriptions
CC
power pin