Beck IPC@CHIP SC2x3, Руководство по оборудованию

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IPC@CHIP SC2x3
Hardware Manual V1.02 [01.03.09]
©2000-2009 BECK IPC GmbH Page 22
4.17 Programmable I/O Pins
The SC2x3 provides 40 programmable I/O pins. Each PIO can be programmed with the attributes function
(enabled/disabled) and direction (input/output). PIOs that programmed as output can drive 4mA (see chapter
8.2.4). During and after reset, all PIO pins are high impedance by default (except PIO0..PIO3, see chapter 6.2.2
Usage of PIO0..PIO3 in consideration of UART1 (Bootloader interface)).
The PIO pins cannot be enabled individually at all
, e.g. if UART1 is used, PIO2 can’t be enabled as PIO
without disabling UART1. For more details see chapter 5 Mutal Exclusive Functions.
PIO Number Shared Function Name Group Nr.
0 UART1_TXD PSC1 0
1 UART1_RXD PSC1 1
2 UART1_RTS PSC1 2
3 UART1_CTS PSC1 3
4 UART1_DCD PSC1 4
5 UART2_TXD / CAN1TXD PSC2 0
6 UART2_RXD / CAN1RXD PSC2 1
7 UART2_RTS / CAN2TXD PSC2 2
8 UART2_CTS / CAN2RXD PSC2 3
9 UART2_DCD PSC2 4
10 UART3_TXD / USB2_OE PSC3 0
11 UART3_RXD / USB2_TXN PSC3 1
12 UART3_RTS / USB2_TXP PSC3 2
13 UART3_RXD / USB2_RXD PSC3 3
14 UART3_DCD / USB2_RXP / LP_CS6# PSC3 4
15 USB2_RXN / LP_CS7# PSC3 5
16 MOSI / USB2_PRTPWR PSC3 6
17 MISO / USB2_SPEED PSC3 7
18 SS / USB2_SUSPEND PSC3 8
19 SCK / USB2_OVRCNT PSC3 9
20 UART6_RXD PSC6 0
21 UART6_CTS PSC6 1
22 UART6_TXD PSC6 2
23 UART6_RTS PSC6 3
24 USB1_OE USB1 0
25 USB1_PRTPWR USB1 6
26 USB1_SPEED USB1 7
27 USB1_SUSPEND USB1 8
28 USB1_OVRCNT USB1 9
29 I2CCLK1 I2C 0
30 I2CDTA1 I2C 1
31 GPIO7 - -
32 TIMER0 TIMER 0
33 TIMER1 TIMER 1
34 TIMER2 TIMER 2
35 TIMER3 TIMER 3
36 TIMER4 TIMER 4
37 TIMER5 TIMER 5
38 TIMER6 TIMER 6
39 TIMER7 TIMER 7
Table 4-15: List of PIO sharing designations