80-0274-E Datasheet, PDF (3/5 Pages) List of Unclassifed Manufacturers – VR Stamp™ With Serial EEPROM Speech Recognition Module

Data Sheet
VR Stamp™ Module – Serial EEPROM
VR Stamp Pin Specification
Pin Description
1 Microphone Return (Analog GND)
2 Microphone VDD
3 Microphone Input
4 Microphone Power
5 DAC Output
6 P2.0
7 P2.1
8 P2.2
9 P2.3
10 P2.4
11 P2.5
12 P2.6
13 P2.7
14 P1.0
15 P1.1
16 P1.2
17 P1.3
18 P1.4
19 VDD
20 GND
Pin Description
40 GND
39 VDD
38 P0.7 (Serial EEPROM SDA)
37 P0.6
36 P0.5
35 P0.4 (Serial EEPROM SCL)
34 P0.3
33 P0.2 (Serial Com -Shutdown)
32 P0.1 (Serial Com TXD)
31 P0.0 (Serial Com RXD)
30 P1.7
29 P1.6
28 P1.5
27 Power Down (PDN)
26 -Reset
25 Program/-Run (-XM)
24 PWM 1 (Speaker Output)
23 PWM 0 (Speaker Output)
22 VDD
21 GND
Note: P0.4 and P0.7 should be reserved for accessing SD/SV recognition data stored in Serial EEPROM.
Note: P0.0 and P0.1 are used for serial download of the binary. P0.1 is also the default pin for output of
diagnostic information. Another input pin needs to be assigned as a DiagEnable pin; at reset, diagnostic output
is enabled if the pin is low and disabled if the pin is high. After reset, the pin can be used for other purposes.
Reset (-Reset)
Input: A negative going pulse resets the VR Stamp.
Program/-Run (-XM)
Input: To run the application, leave this pin unconnected. To download application binary, pull this pin high with
a 100 Ohms resistor.
Power Down (PDN)
Output: The Power Down pin is an active high output, and it is controlled by the application firmware.
General Purpose I/O
Bidirectional: The VR Stamp has 24 general purpose I/O pins. Each line can be programmed as an input with a
weak pull-up resistor, input with a strong pull-up resistor, input without pull-ups, or as an output. For more
details, refer to the RSC-4128 Data Sheet (80-0206).
3
P/N 80-0274-E
© 2006 Sensory Inc.