參數(shù)資料
型號(hào): MC68SZ328
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: i.MX Integrated Portable System Processor
中文描述: i.MX處理器集成的便攜式系統(tǒng)
文件頁數(shù): 22/96頁
文件大?。?/td> 1495K
代理商: MC68SZ328
MC9328MX1 Advance Information, Rev. 4
22
Freescale Semiconductor
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.
Figure 5. EIM Bus Timing Diagram
Table 13. EIM Bus Timing Parameter Table
Ref No.
Parameter
1.8
±
0.10V
3.0
±
0.3V
Unit
Min
Typical
Max
Min
Typical
Max
1a
Clock fall to address valid
2.48
3.31
9.11
2.4
3.2
8.8
ns
1a
1b
2a
2b
3b
3a
4a
4b
4c
4d
5a
5b
5c
5d
6a
6a
6b
6c
7a
7b
7c
8a
8b
9b
9c
9a
9a
7d
(HCLK) Bus Clock
Address
Chip-select
Read (Write)
OE (rising edge)
LBA (negated rising edge)
OE (falling edge)
BCLK (burst clock) - rising edge
LBA (negated falling edge)
EB (falling edge)
EB (rising edge)
BCLK (burst clock) - falling edge
Read Data
Write Data (negated falling)
Write Data (negated rising)
DTACK_B
10a
10a
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