UM11029
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© NXP Semiconductors N.V. 2017. All rights reserved.
User manual
Rev. 1.0 — 16 June 2017
134 of 515
NXP Semiconductors
UM11029
Chapter 10: LPC84x Switch matrix (SWM)
[1]
x = reset values are controlled by FAIM for bit 5 and bit 6.
For bit 4 and bit 7, the reset value is 1.
10.5.1 Pin assign register 0
PINASSIGN13
R/W 0x034
Pin
assign
register 13. Assign movable
functions UART4_SCLK, T0_MAT0,
T0_MAT1, T0_MAT2.
0xFFFF FFFF
PINASSIGN14
R/W 0x038
Pin
assign
register 14. Assign movable
functions T0_MAT3, T0_CAP0, T0_CAP1,
T0_CAP2.
0xFFFF FFFF
PINENABLE0
R/W
0x1C0
Pin enable register 0. Enables fixed-pin
functions ACMP_I1, ACMP_I2, SWCLK,
SWDIO, XTALIN, XTALOUT, RESET, CLKIN,
VDDCMP.
0xFFFF FDXF
Table 179. Register overview: Switch matrix (base address 0x4000 C000)
…continued
Name
Access
Offset
Description
Reset value
Reference
Table 180. Pin assign register 0 (PINASSIGN0, address 0x4000 C000) bit description
Bit
Symbol
Description
Reset
value
7:0
U0_TXD_O
U0_TXD function assignment. The value is the pin number to be
assigned to this function. The following pins are available:
PIO0_0 (= 0) to PIO0_31 (= 0x1F) and from PIO1_0 (= 0x20) to
PIO1_21(= 0x35).
0xFF
15:8
U0_RXD_I
U0_RXD function assignment. The value is the pin number to be
assigned to this function. The following pins are available:
PIO0_0 (= 0) to PIO0_31 (= 0x1F) and from PIO1_0 (= 0x20) to
PIO1_21(= 0x35).
0xFF
23:16 U0_RTS_O
U0_RTS function assignment. The value is the pin number to be
assigned to this function. The following pins are available:
PIO0_0 (= 0) to PIO0_31 (= 0x1F) and from PIO1_0 (= 0x20) to
PIO1_21(= 0x35).
0xFF
31:24 U0_CTS_I
U0_CTS function assignment. The value is the pin number to be
assigned to this function. The following pins are available:
PIO0_0 (= 0) to PIO0_31 (= 0x1F) and from PIO1_0 (= 0x20) to
PIO1_21(= 0x35).
0xFF