z16f2811 ZiLOG Semiconductor, z16f2811 Datasheet - Page 241

• Manufacturer Part Number: z16f2811
• Description: High Performance Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Table 111. I
.
:
PS022006-0207
RESET
FIELD
ADDR
BITS
R/W
Note:
I
2
C Baud Rate High and Low Byte Registers
2
C Baud Rate High Byte Register (I2CBRH)
7
TXI—Enable TDRE interrupts
This bit enables interrupts when the I
NAK—Send NAK
Setting this bit sends a Not Acknowledge condition after the next byte of data has been
received. It is automatically deasserted after the Not Acknowledge is sent or the IEN bit is
cleared. If this bit is 1, it cannot be cleared to 0 by writing to the register.
FLUSH—Flush Data
Setting this bit clears the I
flushing of the I
byte has been written to the I
FILTEN—I
Setting this bit enables low-pass digital filters on the SDA and SCL input signals. This
function provides the spike suppression filter required in I2C Fast Mode. These filters
reject any input pulse with periods less than a full system clock cycle. The filters introduce
a 3-system clock cycle latency on the inputs.
The I
page 228) combine to form a 16-bit reload value,
Generator.
The baud rate High and Low Byte Registers must be programmed for the I
slave mode as well as in master mode. In slave mode, the baud rate value programmed
must match the master's baud rate within +/- 25% for proper operation.
The I
If
I2C Baud Rate (bps)
BRG
2
2
C Baud Rate High and Low Byte registers (see
C baud rate is calculated using the below equation.
=
0000H
6
2
C Signal Filter Enable
, use
2
C Data register when an NAK condition is received after the next data
10000H
5
2
=
P R E L I M I N A R Y
C Data register and sets the
2
System Clock Frequency (Hz)
--------------------------------------------------------------------------- -
in the equation.
C Data register. Reading this bit always returns 0.
4
FF-E243H
2
C Data register is empty.
4 BRG[15:0]
BRH
FFH
R/W
×
3
BRG
Table 111
[15:0], for the I
TDRE
2
bit to 1. This bit allows
I2C Master/Slave Controller
and
Product Specification
ZNEO
Table 112
2
C Baud Rate
1
™
2
C baud rate in
Z16F Series
on
0
227