PSP Modes 9 and 10
For PSP Mode 9 (PSPCFG1/4 = GND, PSPCFG2 = PSPCFG3 = V DD ) 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
Signal Name
J1
Pin
27
ENC624J600
AD8
Explorer 16 and
PIC32 I/O Exp.
RG0 (PMPD8)
Function
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
WRL & WRH
97
(1)
or
RD4/PMPWR
16-Bit Write (1) or Both Byte Select (2)
B0SEL & B1SEL (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
100
105
AD14
AD15
AD12
RD6 (PMPD14)
RD7 (PMPD15)
RD12 (PMPD12)
Bidirectional Data<14>
Bidirectional Data<15>
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
Note 1:
PSP Mode 9.
2:
PSP Mode 10.
RE0/PMPD0-
RE7/PMPD7
Address<0:7> from PIC MCU and
Bidirectional Data<0:7>
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.
14
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