z8f0822 ZiLOG Semiconductor, z8f0822 Datasheet - Page 155

• Manufacturer Part Number: z8f0822
• Description: High Performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

PS022517-0508
set, this bit is reset by the I
the IEN bit. If this bit is 1, it cannot be cleared to 0 by writing to the register.
BIRQ—Baud Rate Generator Interrupt Request
This bit allows the I
Controller is disabled. This bit is ignored when the I
1 = An interrupt occurs every time the BRG counts down to one.
0 = No BRG interrupt occurs.
TXI—Enable TDRE interrupts
This bit enables the transmit interrupt when the I
1 = Transmit Interrupt (and DMA transmit request) is enabled.
0 = Transmit Interrupt (and DMA transmit request) is disabled.
NAK—Send NAK
This bit sends a Not Acknowledge condition after the next byte of data is read from the
I
deasserted. If this bit is 1, it cannot be cleared to 0 by writing to the register.
FLUSH—Flush Data
Setting this bit to 1 clears the I
flushing of the I
data has been sent to the I
FILTEN—I
This bit enables low-pass digital filters on the SDA and SCL input signals. 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.
1 = low-pass filters are enabled.
0 = low-pass filters are disabled.
2
C Slave. Once asserted, it is deasserted after a Not Acknowledge is sent or the IEN bit is
2
C Signal Filter Enable
2
C Data Register when a Not Acknowledge interrupt is received after the
2
C Controller to be used as an additional timer when the I
2
2
C Data Register. Reading this bit always returns 0.
C Controller after a STOP condition is sent or by deasserting
2
C Data Register and sets the TDRE bit to 1. This bit allows
2
C Data Register is empty (TDRE = 1).
2
C Controller is enabled.
Z8 Encore! XP
Product Specification
®
F0822 Series
I2C Controller
2
C
142