Z8F4822AR020SG Datasheet, PDF (169/323 Pages) Zilog, Inc. – High Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F64xx Series
Product Specification
149
I²C Diagnostic Control Register
The I²C Diagnostic Register, shown in Table 77, provides control over diagnostic modes.
This register is a read/write register that is used for I²C diagnostics purposes.
Table 77. I²C Diagnostic Control Register (I2CDIAG)
Bit
7
6
5
4
3
2
1
0
Field
Reserved
DIAG
RESET
0
R/W
R
R/W
Address
F56H
Bit
[7:1]
[0]
DIAG
Description
Reserved
These bits are reserved and must be programmed to 0000000.
Diagnostic Control Bit
Selects read back value of the Baud Rate Reload registers.
0 = NORMAL Mode. Reading the Baud Rate High and Low Byte registers returns the baud rate
reload value.
1 = DIAGNOSTIC Mode. Reading the Baud Rate High and Low Byte registers returns the baud
rate counter value.
PS019924-0113
PRELIMINARY
I2C Control Register Definitions