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| 型號： | LPC2194 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Single-chip 16/32-bit microcontrollers 256 kB ISP/IAP Flash with 10-bit ADC and CAN |
| 中文描述： | 單片16/32位微控制器，256 KB的ISP / IAP閃存的10位ADC和CAN |
| 文件頁數(shù)： | 12/33頁 |
| 文件大小： | 158K |
| 代理商： | LPC2194 |
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Philips Semiconductors
LPC2194
Single-chip 16/32-bit microcontrollers
Preliminary data
Rev. 01 — 06 February 2004
12 of 33
9397 750 12757
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
6.6 Pin connect block
The pin connect block allows selected pins of the microcontroller to have more than
one function. Configuration registers control the multiplexers to allow connection
between the pin and the on chip peripherals. Peripherals should be connected to the
appropriate pins prior to being activated, and prior to any related interrupt(s) being
enabled. Activity of any enabled peripheral function that is not mapped to a related
pin should be considered undefined.
The Pin Control Module contains three registers as shown in
Table 5
.
6.7 Pin function select register 0 (PINSEL0 - 0xE002C000)
The PINSEL0 register controls the functions of the pins as per the settings listed in
Table 6
. The direction control bit in the IODIR register is effective only when the GPIO
function is selected for a pin. For other functions, direction is controlled automatically.
Settings other than those shown in
Table 6
are reserved, and should not be used
I
2
C
SPI0
SPI1
PLL
RTC
System Control
SI (state change)
SPIF, MODF
SPIF, MODF
PLL Lock (PLOCK)
RTCCIF (Counter Increment), RTCALF (Alarm)
External Interrupt 0 (EINT0)
External Interrupt 1 (EINT1)
External Interrupt 2 (EINT2)
External Interrupt 3 (EINT3)
A/D Converter
1 ORed CAN Acceptance Filter
CAN1 (Tx int, Rx int)
CAN2 (Tx int, Rx int)
CAN3 (Tx int, Rx int)
CAN4 (Tx int, Rx int)
9
10
11
12
13
14
15
16
17
18
19
20,21
22,23
24,25
26,27
A/D
CAN
Table 4:
Block
Interrupt sources
…continued
Flag(s)
VIC channel #
Table 5:
Address
0xE002C000
0xE002C004
0xE002C014
Name
PINSEL0
PINSEL1
PINSEL2
Description
Pin function select register 0
Pin function select register 1
Pin function select register 2
Access
Read/Write
Read/Write
Read/Write
Table 6:
PINSEL0
1:0
Pin function select register 0 (PINSEL0 - 0xE002C000)
Pin name
Value
P0.0
0
0
0
1
1
0
1
1
Function
GPIO Port 0.0
TxD (UART0)
PWM1
Reserved
Value after Reset
0
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