MC9328MX1/D ETC, MC9328MX1/D Datasheet - Page 22

• Manufacturer Part Number: MC9328MX1/D
• Description: i.MX Integrated Portable System Processor
• Manufacturer: ETC

Specifications
3.9 External Interface Module
The External Interface Module (EIM) handles the interface to devices external to the MC9328MX1, including
generation of chip-selects for external peripherals and memory. The timing diagram for the EIM is shown in
Figure 5, and Table 13 defines the parameters of signals.
22
Ref No.
1a
BCLK (burst clock) - rising edge
BCLK (burst clock) - falling edge
Write Data (negated falling)
Write Data (negated rising)
LBA (negated falling edge)
LBA (negated rising edge)
Clock fall to address valid
(HCLK) Bus Clock
OE (falling edge)
EB (falling edge)
OE (rising edge)
EB (rising edge)
Read (Write)
Chip-select
Read Data
DTACK_B
Address
Parameter
Table 13. EIM Bus Timing Parameter Table
MC9328MX1 Advance Information, Rev. 4
Figure 5. EIM Bus Timing Diagram
1a
2a
3a
6a
6a
4a
5a
7a
9a
9a
4c
5c
7c
2.48
Min
10a
1.8
Typical
±
3.31
0.10V
8a
6c
7b
Max
9.11
7d
Min
2.4
10a
3.0
4b
5b
9c
Typical
8b
±
3.2
Freescale Semiconductor
0.3V
1b
2b
3b
4d
5d
6b
9b
Max
8.8
Unit
ns