Page 16
Epson Research and Development
Vancouver Design Center
S1D13505
Interfacing to the Motorola MPC821 Microprocessor
X23A-G-008-05
Issue Date: 01/02/05
Table 4-1:,“List of Connections from MPC821ADS to S1D13505” on page 16 shows the
connections between the pins and signals of the MPC821 and the S1D13505.
Note
The interface was designed using a Motorola MPC821 Application Development
System (ADS). The ADS board has 5 volt logic connected to the data bus, so the
interface included two 74F245 octal buffers on D[0:15] between the ADS and the
S1D13505. In a true 3 volt system, no buffering is necessary.
4.2 Hardware Connections
The following table details the connections between the pins and signals of the MPC821
and the S1D13505.
Table 4-1: List of Connections from MPC821ADS to S1D13505
MPC821 Signal Name
MPC821ADS Connector and Pin Name
S1D13505 Signal Name
Vcc
P6-A1, P6-B1
Vcc
A10
P6-C23
M/R#
A11
P6-A22
AB20
A12
P6-B22
AB19
A13
P6-C21
AB18
A14
P6-C20
AB17
A15
P6-D20
AB16
A16
P6-B24
AB15
A17
P6-C24
AB14
A18
P6-D23
AB13
A19
P6-D22
AB12
A20
P6-D19
AB11
A21
P6-A19
AB10
A22
P6-D28
AB9
A23
P6-A28
AB8
A24
P6-C27
AB7
A25
P6-A26
AB6
A26
P6-C26
AB5
A27
P6-A25
AB4
A28
P6-D26
AB3
A29
P6-B25
AB2
A30
P6-B19
AB1
A31
P6-D17
AB0
D0
P12-A9
DB15
D1
P12-C9
DB14
D2
P12-D9
DB13
D3
P12-A8
DB12
D4
P12-B8
DB11
D5
P12-D8
DB10
D6
P12-B7
DB9
D7
P12-C7
DB8