Freescale Semiconductor MPC5200B ユーザーズマニュアル
General Purpose I/O (GPIO)
MPC5200B Users Guide, Rev. 1
Freescale Semiconductor
7-29
7.3.2.1.1
GPS Port Configuration Register
—
MBAR + 0x0B00
Table 7-21. GPS Port Configuration Register
msb 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
CS1
LPT
Z
ALTs
CS7
CS6
ATA
IR_
U
SB_CLK
IRDA
Ether
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31 lsb
R
PCI_DIS
USB_SE
USB
PSC3
Rsvd
PSC2
Rsvd
PSC1
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Name
Description
0
CS1
Memory Chip Select bit
0 = gpio_wkup_6
1 = mem_cs1 (second SDRAMC chip select) on gpio_wkup_6 pin
1
LPTZ
LocalPlus non-muxed TSIZ bit
0 = gpio_wkup_7 and test_sel_1
1 = TSIZ 1 on gpio_wkup_7 and TSIZ 2 on test_sel_1
2:3
ALTs
Alternatives, see Note
2
00 = No Alternatives: CAN1/2 on PSC2 according to PSC2 setting.
SPI on PSC3 according to PSC3 setting.
01 = ALT CAN position: CAN1 on I2C1, CAN2 on Tmr0/1 pins, see Note 1
10 = ALT SPI position: SPI on Tmr2/3/4/5 pins, see Note
2
11 = Both on ALT
4
CS7
0 = Interrupt GPIO on PSC3_5 (see note 6)
1 = CS7 on PSC3_5
5
CS6
0 = Interrupt GPIO on PSC3_4 (see note 6)
1 = CS6 on PSC3_4
6:7
ATA
Advanced Technology Attachment
00 = No ATA chip selects, csb_4/5 used as normal chip select
01 = ATA cs0/1 on csb_4/5
10 = ATA cs0/1 on i2c2 clk/io
11 = ATA cs0/1 on Tmr0/1, see Note
1
8
IR_USB_CLK
Infrared USB Clock
0 = IrDA/USB 48MHz clock generated internally, pin is GPIO
1 = IrDA/USB clock is sourced externally, input only