cp3cn17 National Semiconductor Corporation, cp3cn17 Datasheet - Page 12

• Manufacturer Part Number: cp3cn17
• Description: Reprogrammable Connectivity Processor With Can Interface
• Manufacturer: National Semiconductor Corporation

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4.1
Some pins may be enabled as general-purpose I/O-port
pins or as alternate functions associated with specific pe-
ripherals or interfaces. These pins may be individually con-
X1CKI
X1CKO
X2CKI
X2CKO
AVCC
IOVCC
VCC
GND
AGND
RESET
TMS
TDI
TDO
TCK
RDY
PG0
PG1
PG2
PG3
PG4
PG5
PG6
PG7
Name
PIN DESCRIPTION
Pins
1
1
1
1
1
4
2
6
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Input
Output
Input
Output
Input
Input
Input
Input
Input
Input
Input
Input
Output
Input
Output
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
12 MHz Oscillator Input
12 MHz Oscillator Output
32 kHz Oscillator Input
32 kHz Oscillator Output
PLL Analog Power Supply
2.5V - 3.3V I/O Power Supply
2.5V Core Logic
Power Supply
Reference Ground
PLL Analog Ground
Chip general reset
JTAG Test Mode Select
(with internal weak pull-up)
JTAG Test Data Input
(with internal weak pull-up)
JTAG Test Data Output
JTAG Test Clock Input
(with internal weak pull-up)
NEXUS Ready Output
Generic I/O
Generic I/O
Generic I/O
Generic I/O
Generic I/O
Generic I/O
Generic I/O
Generic I/O
Table 4 Pin Description for the 100-Pin LQFP Package
Primary Function
12
figured as port pins, even when the associated peripheral or
interface is enabled. Table 4 lists the device pins.
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
RXD
WUI10
TXD
WUI11
RTS
WUI12
CTS
WUI13
CKX
TB
SRFS
NMI
CANRX
WUI14
CANTX
WUI15
Alternate
Name
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
UART Receive Data Input
Multi-Input Wake-Up Channel 10
UART Transmit Data Output
Multi-Input Wake-Up Channel 11
UART Ready-To-Send Output
Multi-Input Wake-Up Channel 12
UART Clear-To-Send Input
Multi-Input Wake-Up Channel 13
UART Clock Input
Multi Function Timer Port B
AAI Receive Frame Sync
Non-Maskable Interrupt Input
CAN Receive Pin
Multi-Input Wake-Up Channel 14
CAN Transmit Pin
Multi-Input Wake-Up Channel 15
Alternate Function