User`s manual

5: INTERFACING TO THE MOTOROLA MCF5307 MICROPROCESSOR
APPLICATION NOTES (S19A-G-005-05) EPSON 5-41
5.4.2 S1D13504 Hardware Configuration
The S1D13504 uses MD0 through MD15 to allow selection of the bus mode and other configuration
data on the rising edge of RESET#. Table 4-2 shows the settings used for the S1D13504 in this inter-
face. These settings are very similar to the ISA bus, except that the WAIT# signal is set to active high
rather than active low, and the Coldfire is big endian rather than little endian.
Table 5-1 S1D13504 Configuration Settings
Signal 1 0
MD0 8-bit host bus interface 16-bit host bus interface
MD1
See “Host Bus Selection” table below See “Host Bus Selection” table belowMD2
MD3
MD4 Little Endian Big Endian
MD5 WAIT# signal is active high WAIT# signal is active low
MD6
See “Memory Configuration” table below See “Memory Configuration” table below
MD7
MD8
Configure DACRD#, BLANK#, DACP0, DACWR#,
DACRS0, DACRS1, HRTC, VRTC as GPIO4–11
Configure DACRD#, BLANK#, DACP0, DACWR#,
DACRS0, DACRS1, HRTC, VRTC as DAC / CRT outputs
MD9 Configure SUSPEND# pin as GPO output
Configure SUSPEND# pin as Hardware Suspend
Enable
MD10 Active low (On) LCDPWR / GPO polarity Active high (On) LCDPWR / GPO polarity
MD11 Reserved Reserved
MD12 Reserved Reserved
MD13 Reserved Reserved
MD14 Reserved Reserved
MD15 Reserved Reserved
= required settings for MCF5307 support.
Table 5-2 Host Bus Selection
MD3 MD2 MD1 Option Host Bus Interface
0 0 0 1 SH-3 bus interface
0 0 1 2 MC68K bus 1 interface (e.g. MC68000)
0 1 0 3 MC68K bus 2 interface (e.g. MC68030)
0 1 1 4 Generic bus interface (e.g. MCF5307, ISA bus interface)
1 x x 5 Reserved
= required settings for MCF5307 support.
Table 5-3 Memory Configuration
MD7 MD6 Option Memory Selection
0 0 1 Symmetrical 256K x 16 DRAM
0 1 2 Symmetrical 1M x 16 DRAM
1 0 3 Asymmetrical 256K x 16 DRAM
1 1 4 Asymmetrical 1M x 16 DRAM