Support Information
Secure Digital Connector
User’s Manual
EVB912UF32 Evaluation Board - Rev 1
MOTOROLA
Support Information
21
3.4 Secure Digital Connector
Connector J17 is the EVB912UF32 Secure Digital (SD) connector.
Figure 3-4 gives the pin assignments and Table 3-3 gives the signal
descriptions for this connector.
17
DD0
DATA BIT 0 — Bidirectional
18
DD15
DATA BIT 15 — Bidirectional
20
KEY
Missing pin to key connector
21
DMARQ
Direct Memory Access Request — Active high output
23
IOWR_B
Input/Output Write — Active low input
25
IORD_B
Input/Output Read — Active low input
27
IORDY
Input/Output Ready — Active low output
28
CSEL
Cable Select
29
DMACK_B
DIrect Memory Access Acknowledge — Active low input
31
INTRQ
Interrupt Request — Active high output
32, 34
NC
Not Connected
33
A1
ADDRESS BIT 1 — Device address input
35
A0
ADDRESS BIT 0 — Device address input
36
A2
ADDRESS BIT 2 — Device address input
37
CS0_B
Chip Select 0 — Active low input
38
CS1_B
Chip Select 1 — Active low input
39
BVD1_DASP
Device Active or Slave Present — Bidirectional
Pin(s)
Function
Description