Datasheet

ENC424J600/624J600
DS39935C-page 62  2010 Microchip Technology Inc.
FIGURE 5-13: DEVICE CONNECTIONS FOR PSP MODE 5
Host MCU ENC424J600
CS
(1)
RD
100 k
WR
AD<14:9>
(2)
AD<7:0>
INT
/SPISEL
PMCSx
PMRD
PMWR
PMA<14:9>
PMD<7:0>
INTx
(3)
6
8
PSPCFG0
Note 1: Use of the CS strobe from the controller is optional. If not used, tie CS to VDD.
2: Connect these pins when direct addressing of the entire SRAM buffer is required. Tie to VDD when only indirect
addressing is desired.
3: Use of the external interrupt signal to the controller is optional.
Host MCU ENC624J600
100 k
INT/SPISEL
INTx
(3)
PSPCFG1
PSPCFG2
PSPCFG3
AL
PMALL
CS
(1)
RD
WR
PMCSx
PMRD
PMWR
6
AL
PMALL
+3.3V
44-pin Devices:
64-pin Devices:
PMA8
AD8
AD<14:9>
(2)
AD<7:0>
PMA<14:9>
PMD<7:0>
8
PMA8
AD8