CRD5376 Datasheet, PDF (23/68 Pages) Cirrus Logic – Multichannel Seismic Reference Design

CRD5376
Small size - 32 pin LQFP package, 9mm x 9mm
Industrial temperature - full performance (including USB) from -40 C to +85 C
Internal temperature sensor - with range violation interrupt capability
Internal timers - four general purpose plus one extended capability
Power on reset - can supply a reset signal to external devices
Analog ADC - 10 bit, 200 ksps SAR with internal voltage reference
Analog comparators - arbitrary high/low voltage compare with interrupt capability
The exact use of the microcontroller features is controlled by embedded firmware.
C8051F320 has dedicated pins for power and the USB connection, plus 25 general purpose I/O pins that
connect to the various internal resources through a programmable crossbar. Hardware connections on
CRD5376 limit how the blocks can operate, so the port mapping of microcontroller resources is detailed
below.
Pin #
1
2
3
4
5
6
7
8
Pin Name
P0.1
P0.0
GND
D+
D-
VDD
REGIN
VBUS
Assignment
SDTKI
SYNC_IO
Description
Token to start CS5376A data transaction
SYNC signal from RS-485
Ground
USB differential data transceiver
USB differential data transceiver
+3.3 V power supply input
+5 V power supply input (unused on CRD5376)
USB voltage sense input
Pin #
9
10
11
12
13
14
15
16
Pin Name
/RST
C2CK
P3.0
C2D
P2.7
P2.6
P2.5
P2.4
P2.3
P2.2
Assignment
RESETz
GPIO
AIN-
AIN+
SW0
MODE2
MODE1
MODE0
Description
Power on reset output, active low
Clock input for debug interface
General purpose I/O
Data in/out for debug interface
ADC input
ADC input
Analog switch control
CS4373A mode control
CS4373A mode control
CS4373A mode control
DS612RD1
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