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AR-B1045 User’s Guide
AR-B1045
7
2.2 Operation mode selection
•
J1 : jumper setting
•
Operation mode description
2.3 Voltage selection
•
JP1 : Chip Voltage selection
Note: RICOH R5C486 ->2.5V R5C586 -> 3.3V
Pin DESCRIPTION
1-2,3-4 open Mode 0
1-2 open,3-4 short
Mode 1
1-2 short,3-4 open
Mode 2
1-2,3-4 short Mode 3
PCICLK IDSEL
INT 0
INT 1
REQ GNT
Mode 0
PCICLK0
AD20
A B REQ0
GNT0
Mode 1
PCICLK1
AD21
B C REQ1
GNT1
Mode 2
PCICLK2
AD22
C D REQ2
GNT2
Mode 3
PCICLK3
AD23
D A REQ3
GNT3
PIN DESCRIPTION
1-2 +3.3V
2-3 +2.5V