PIC24FJ128GA310-I Datasheet, PDF (254/406 Pages) Microchip Technology – 64/80/100-Pin, General Purpose, 16-Bit Flash Microcontrollers with LCD Controller and nanoWatt XLP Technology

PIC24FJ128GA310 FAMILY
TABLE 20-2: ENHANCED PARALLEL MASTER PORT PIN DESCRIPTIONS
Pin Name
(Alternate Function)
Type
Description
PMA<22:16>
O
Address Bus bits<22:16>
PMA<15>
O
Address Bus bit 15
I/O
Data Bus bit 15 (16-bit port with multiplexed addressing)
(PMCS2)
O
Chip Select 2 (alternate location)
PMA<14>
O
Address Bus bit 14
I/O
Data Bus bit 14 (16-bit port with multiplexed addressing)
(PMCS1)
O
Chip Select 1 (alternate location)
PMA<13:8>
O
Address Bus bits<13:8>
I/O
Data Bus bits<13:8> (16-bit port with multiplexed addressing)
PMA<7:3>
O
Address Bus bits<7:3>
PMA<2>
(PMALU)
O
Address Bus bit 2
O
Address Latch Upper Strobe for Multiplexed Address
PMA<1>
(PMALH)
I/O
Address Bus bit 1
O
Address Latch High Strobe for Multiplexed Address
PMA<0>
(PMALL)
I/O
Address Bus bit 0
O
Address Latch Low Strobe for Multiplexed Address
PMD<15:8>
I/O
Data Bus bits<15:8> (demultiplexed addressing)
PMD<7:4>
I/O
Data Bus bits<7:4>
O
Address Bus bits<7:4> (4-bit port with 1-phase multiplexed addressing)
PMD<3:0>
I/O
Data Bus bits<3:0>
PMCS1⁽¹⁾
I/O
Chip Select 1
PMCS2⁽²⁾
O
Chip Select 2
PMWR
I/O
Write Strobe⁽³⁾
(PMENB)
I/O
Enable Signal⁽³⁾
PMRD
I/O
Read Strobe⁽³⁾
(PMRD/PMWR)
I/O
Read/Write Signal⁽³⁾
PMBE1
O
Byte Indicator
PMBE0
O
Nibble or Byte Indicator
PMACK1
I
Acknowledgment Signal 1
PMACK2
I
Acknowledgment Signal 2
Note 1:
2:
3:
These pins are implemented in 80-pin and 100-pin devices only.
These pins are implemented in 100-pin devices only.
Signal function depends on the setting of the MODE<1:0> and SM bits (PMCON1<9:8> and PMCSxCF<8>).
DS39996F-page 254
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