Freescale Semiconductor M9328MX21ADSE User Manual
Page 42
Support Information
M9328MX21ADSE User’s Manual, Rev. A
3-14
Freescale Semiconductor
32
D13
DATA BIT 13 — Bidirectional data bit from the processor
33
D1
DATA BIT 1 — Bidirectional data bit from the processor
34
D14
DATA BIT 14 — Bidirectional data bit from the processor
35
D0
DATA BIT 0 — Bidirectional data bit from the processor
36
D15
DATA BIT 15 — Bidirectional data bit from the processor
37
DQM1_EB1_B
ENABLE BYTE 1 — D23-D16 for SDRAM, D15-D8 for other memory types
38
SDCLK
SDRAM CLOCK — Main clock signal to SDRAM devices
39
DQM0_EB0_B
ENABLE BYTE 0 — D31-D24 for SDRAM, D7-D0 for other memory types
40
A18
ADDRESS BIT 18 — Output line for addressing external devices
41
SDCKE0
SDRAM CLOCK ENABLE 0 — Active high outputs to SDRAM
42
A17
ADDRESS BIT 17 — Output line for addressing external devices
43
MA10
MULTIPLEXED ADDRESS BIT 1O — Multiplexed address bit to SDRAM
44
A10
ADDRESS BIT 10 — Output line for addressing external devices
46
A9
ADDRESS BIT 9 — Output line for addressing external devices
47
A16
ADDRESS BIT 16 — Output line for addressing external devices
48
A7
ADDRESS BIT 7 — Output line for addressing external devices
49
A14
ADDRESS BIT 14 — Output line for addressing external devices
50
A6
ADDRESS BIT 6 — Output line for addressing external devices
52
A8
ADDRESS BIT 8 — Output line for addressing external devices
53
A15
ADDRESS BIT 15 — Output line for addressing external devices
54
A11
ADDRESS BIT 11 — Output line for addressing external devices
55
A13
ADDRESS BIT 13 — Output line for addressing external devices
56, 59
P5V
Switched +5 VDC power
57
A12
ADDRESS BIT 12 — Output line for addressing external devices
58
OE_B PC_IOWR
PCMCIA IO WRITE— Active low output for I/O writes*
60
ECB_B
END CURRENT BURST — Active low input signal asserted by external burst devices
* The signal name in italics is the function intended for operation with this connector. It is multiplexed inside the i.MX21
processor with the listed signal.
Table 3-3. CPU to Option Card PK1 Connector Signals
Pin(s)
Signal
Description