Filter
Top Products
UART Modules
MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2
24-4 Freescale Semiconductor
Table 24-2. UART Module Memory Map
IPSBAR
Offset
Register
Width
(bit)
Access Reset Value Section/Page
UART0
UART1
UART2
0x00_0200
0x00_0240
0x00_0280
UART Mode Registers
1
(UMR1n), (UMR2n)
1
UMR1n, UMR2n, and UCSRn must be changed only after the receiver/transmitter is issued a software reset command. If
operation is not disabled, undesirable results may occur.
8 R/W 0x00 24.3.1/24-5
24.3.2/24-6
0x00_0204
0x00_0244
0x00_0284
UART Status Register (USRn)8R0x0024.3.3/24-7
UART Clock Select Register
1
(UCSRn) 8 W See Section 24.3.4/24-9
0x00_0208
0x00_0248
0x00_0288
UART Command Registers (UCRn)8W0x0024.3.5/24-9
0x00_020C
0x00_024C
0x00_028C
UART Receive Buffers (URBn) 8 R 0xFF 24.3.6/24-11
UART Transmit Buffers (UTBn)8W0x0024.3.7/24-12
0x00_0210
0x00_0250
0x00_0290
UART Input Port Change Register (UIPCRn) 8 R See Section 24.3.8/24-12
UART Auxiliary Control Register (UACRn)8W0x0024.3.9/24-13
0x00_0214
0x00_0254
0x00_0294
UART Interrupt Status Register (UISRn)8R0x0024.3.10/24-13
UART Interrupt Mask Register (UIMRn)8W0x00
0x00_0218
0x00_0258
0x00_0298
UART Baud Rate Generator Register (UBG1n)8W
2
2
Reading this register results in undesired effects and possible incorrect transmission or reception of characters. Register
contents may also be changed.
0x00 24.3.11/24-15
0x00_021C
0x00_025C
0x00_029C
UART Baud Rate Generator Register (UBG2n)8W
2
0x00 24.3.11/24-15
0x00_0234
0x00_0274
0x00_02B4
UART Input Port Register (UIPn) 8 R 0xFF 24.3.12/24-15
0x00_0238
0x00_0278
0x00_02B8
UART Output Port Bit Set Command Register (UOP1n)8W
2
0x00 24.3.13/24-16
0x00_023C
0x00_027C
0x00_02BC
UART Output Port Bit Reset Command Register (UOP0n)8W
2
0x00 24.3.13/24-16