mcf51jf128 Freescale Semiconductor, Inc, mcf51jf128 Datasheet - Page 1026

• Manufacturer Part Number: mcf51jf128
• Description: Mcf51jf128 Reference Manual
• Manufacturer: Freescale Semiconductor, Inc

Memory Map and Registers
42.3.1 I2C Address Register 1 (I2Cx_A1)
This register contains the slave address to be used by the I2C module.
Addresses: I2C0_A1 is FFFF_81C0h base + 0h offset = FFFF_81C0h
1026
FFFF_81FA I2C SCL Low Timeout Register High (I2C3_SLTH)
FFFF_81FB I2C SCL Low Timeout Register Low (I2C3_SLTL)
FFFF_81F4
FFFF_81F5
FFFF_81F6
FFFF_81F7
FFFF_81F8
FFFF_81F9
Absolute
address
Reserved
(hex)
AD[7:1]
Reset
Field
Read
7–1
Write
0
Bit
I2C1_A1 is FFFF_81D0h base + 0h offset = FFFF_81D0h
I2C2_A1 is FFFF_81E0h base + 0h offset = FFFF_81E0h
I2C3_A1 is FFFF_81F0h base + 0h offset = FFFF_81F0h
I2C Data I/O register (I2C3_D)
I2C Control Register 2 (I2C3_C2)
I2C Programmable Input Glitch Filter register (I2C3_FLT)
I2C Range Address register (I2C3_RA)
I2C SMBus Control and Status register (I2C3_SMB)
I2C Address Register 2 (I2C3_A2)
Address
Contains the primary slave address used by the I2C module when it is addressed as a slave. This field is
used in the 7-bit address scheme and the lower seven bits in the 10-bit address scheme.
This read-only bit is reserved and always has the value zero.
7
0
0
6
MCF51JF128 Reference Manual, Rev. 2, 03/2011
Register name
I2Cx memory map (continued)
I2Cx_A1 field descriptions
0
5
Preliminary
AD[7:1]
0
4
Description
0
3
(in bits)
Width
8
8
8
8
8
8
8
8
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
2
Freescale Semiconductor, Inc.
Reset value
C2h
00h
00h
00h
00h
00h
00h
00h
0
1
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42.3.10/
42.3.11/
42.3.12/
42.3.5/
42.3.6/
42.3.7/
42.3.8/
42.3.9/
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