NXP Semiconductors EVB912UF32, Руководство пользователя, Страница: 29 / 44

Support Information
SmartMedia Connector
User’s Manual EVB912UF32 Evaluation Board - Rev 1
MOTOROLA Support Information 23
Figure 3-5 SmartMedia Connector J7 Pin Assignments
Table 3-4 SmartMedia Connector J7 Signal Descriptions
Pin(s) Signal Description
1,10,18 GND GROUND
2 SCLE SmartMedia Command Latch Enable — Active
high input
3 SALE SmartMedia Address Latch Enable — Active
high input
4 SWE SmartMedia Write Enable — Active low input
5 SWP SmartMedia Write Protect — Active low input
6 SDAT0 SmartMedia Data Bit 0 — Bidirectional
7 SDAT1 SmartMedia Data Bit 1 — Bidirectional
8 SDAT2 SmartMedia Data Bit 2 — Bidirectional
9 SDAT3 SmartMedia Data Bit 3 — Bidirectional
11 SCD SmartMedia Card Detect — Low if card is
present
12,22 P3_3V +3.3 volt power
13 SDAT4 SmartMedia Data Bit 4 — Bidirectional
14 SDAT5 SmartMedia Data Bit 5 — Bidirectional
15 SDAT6 SmartMedia Data Bit 6 — Bidirectional
16 SDAT7 SmartMedia Data Bit 7 — Bidirectional
17 SLVD SmartMedia Low Voltage Detect
19 SBSY SmartMedia Busy — Active low output, open
drain.
20 SRE SmartMedia Read Enable — Active low input
21 SCE SmartMedia Card Enable — Active low input
1
2
2
11 1
2
25
26