Datasheet

14
PSP Modes 9 and 10
For PSP Mode 9 (PSPCFG1/4 = GND, PSPCFG2 = PSPCFG3 = VDD) and PSP Mode 10
(PSPCFG1&4 = PSPCFG2 = PSPCFG3 = V
DD), the ENC624J600 PSP interface signals are
connected as follows:
Interface Signal Connections for PSP Modes 9 and 10
For PSP Modes 9 and 10, the 16-bit bidirectional data is carried by the PMPD0-PMPD15 I/O
pins. This requires that all 16 pins be connected. Since the entire 14-bit address bus is
multiplexed onto these same pins, the concept of indirect addressing using a limited set of
address pins is unnecessary. When using PSP Mode 9 or 10, direct addressing is always
performed.
J1
Pin
Signal Name
Function
ENC624J600
Explorer 16 and
PIC32 I/O Exp.
27 AD8 RG0 (PMPD8) Address<8> from PIC MCU and
Bidirectional Data<8>
28 AD11 RF0 (PMPD11) Address<11> from PIC MCU and
Bidirectional Data<11>
29 AD9 RG1 (PMPD9) Address<9> from PIC MCU and
Bidirectional Data<9>
30 AD10 RF1 (PMPD10) Address<10> from PIC MCU and
Bidirectional Data<10>
84 AL RB15/PMPA0 Address Latch from PIC MCU
97 WRL & WRH
(1)
or
B0SEL & B1SEL
(2)
RD4/PMPWR 16-Bit Write
(1)
or Both Byte Select
(2)
Strobes from PIC MCU
98 RD
(1)
or R/W
(2)
RD5/PMPRD 16-Bit Read Strobe
(1)
or Read/Write
(2)
Select from PIC MCU
99 AD14 RD6 (PMPD14) Bidirectional Data<14>
100 AD15 RD7 (PMPD15) Bidirectional Data<15>
105 AD12 RD12 (PMPD12) Address<12> from PIC MCU and
Bidirectional Data<12>
106 AD13 RD13 (PMPD13) Address<13> from PIC MCU and
Bidirectional Data<13>
109-116 AD0-AD7 RE0/PMPD0-
RE7/PMPD7
Address<0:7> from PIC MCU and
Bidirectional Data<0:7>
Note 1: PSP Mode 9.
2: PSP Mode 10.