at85c51snd3b ATMEL Corporation, at85c51snd3b Datasheet - Page 15

• Manufacturer Part Number: at85c51snd3b
• Description: Single-chip Digital Audio Decoder - Encoder With Usb 2.0 Interface
• Manufacturer: ATMEL Corporation

OCD Interface
7632C–MP3–11/06
Table 16. OCD Signal Description
RLVDD
IOVDD
Signal
IOVSS
Signal
OCDR
HVDD
OCDT
Name
BVSS
CVSS
Name
LVDD
VSS
Type Description
PWR
PWR
PWR
PWR
Type Description
GND
GND
GND
GND
I/O
I
Battery Ground
Connect this pin to the negative pin of the battery.
Low Voltage DC-DC Power Supply output
This pin outputs +1.8V typ. from internal DC-DC (battery powered).
Low Voltage Regulator Power Supply Output
This pin outputs +1.8V typ. from internal regulator (USB powered or
+3V external power supply).
Connect this pin to LVDD incase of internal DC-DC usage.
High Voltage Power Supply
This pin outputs +3V typ. from internal regulator (USB powered).
Connect this pin to +3V external power supply.
Power Ground
Connect this pin to the system ground.
Core Ground
Connect this pin to VSS pin.
Input/Output Supply voltage
Connect this pin to LVDD or HVDD pin.
Input/Output Circuit Ground
Connect this pin to VSS pin.
On Chip Debug Receive Input
OCDR receives data.
On Chip Debug Transmit Output
OCDT transmits data.
AT85C51SND3B
Alternate
Function
Alternate
Function
ISP
-
-
-
-
-
-
-
-
-
15