Freescale Semiconductor ColdFire MCF52210 User Manual

Page 390

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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)

8

R

0x00

24.3.3/24-7

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)

8

W

0x00

24.3.5/24-9

0x00_020C
0x00_024C
0x00_028C

UART Receive Buffers (URBn)

8

R

0xFF

24.3.6/24-11

UART Transmit Buffers (UTBn)

8

W

0x00

24.3.7/24-12

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)

8

W

0x00

24.3.9/24-13

0x00_0214
0x00_0254
0x00_0294

UART Interrupt Status Register (UISRn)

8

R

0x00

24.3.10/24-13

UART Interrupt Mask Register (UIMRn)

8

W

0x00

0x00_0218
0x00_0258
0x00_0298

UART Baud Rate Generator Register (UBG1n)

8

W

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)

8

W

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)

8

W

2

0x00

24.3.13/24-16

0x00_023C
0x00_027C

0x00_02BC

UART Output Port Bit Reset Command Register (UOP0n)

8

W

2

0x00

24.3.13/24-16

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