Agilent Technologies HDMP-3001 User Manual
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4.3 Firmware and System Design
Information
4.3.1 Board level pull-ups and
pull-downs
Many of the HDMP-3001 input and
tristateable outputs have internal
pull-ups. Refer to the pin descrip-
tion for detailed information on
where external pull-ups are re-
quired.
4.3.2 Motorola MPC860
Microprocessor Interface
The recommended setup of the
interface is:
•
HDMP-3001 mapped to the
smallest memory bank, 32
Kbytes.
•
BR[20-31] = 010000000001,
which sets no parity, 8 bits
data, GPCM controlled.
•
OR[20-31] = 000100001000,
which sets normal CS timing,
no burst allowed, externally
generated TA.
Pin connections are described in
Table 16.
HDMP-3001 Pin Name Microprocessor Pin Name
HDMP-3001 Pin Name
Microprocessor Pin Name
BUSMODE [1:0]
0, 0
ADDR[8] to ADDR[0]
A[23] to A[31]. Note: Bus is twisted!
D[7] to D[0]
D[0] to D[7]. Note: Bus is twisted!
CSB
One of the CSs
WRB
WE0
RDB
OE
RDYB
TA
INTB
One of the IRQs
CPU_CLK
CLKOUT
Table 16. Pin Connections – MPC860