z8f0822 ZiLOG Semiconductor, z8f0822 Datasheet - Page 152

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

Table 70. I
I
PS022517-0508
BITS
FIELD
RESET
R/W
ADDR
2
C Control Register Definitions
I
2
C Data Register
2
C Data Register (I2CDATA)
7
19. The I
20. The I
21. Software responds by reading the I
22. If there are one or more bytes to transfer, return to
23. After the last byte is shifted in, a Not Acknowledge interrupt is generated by the I
24. Software responds by setting the STOP bit of the I
25. A STOP condition is sent to the I
The I
ister during a write to a slave. This register also holds data that is loaded from the I
register during a read from a slave. The I
File address space, but is used only to buffer incoming and outgoing data.
STOP condition on the bus and clears the STOP and NCKI bits. The transaction is
complete (ignore the following steps).
I
byte), else it sends an Acknowledge.
there is only one more byte to receive, set the NAK bit of the I
Controller.
2
2
C Controller sends a Not Acknowledge to the I
C Data Register
2
2
C Controller shifts in a byte of data from the I
C Controller asserts the Receive interrupt (RDRF bit set in the Status register).
6
(Table
5
70) holds the data that is to be loaded into the I
4
2
C Slave and the STOP and NCKI bits are cleared.
2
DATA
F50H
C Data Register which clears the RDRF bit. If
R/W
2
C Shift Register is not accessible in the Register
0
3
2
C Slave if the NAK bit is set (last
2
step
C Control Register.
Z8 Encore! XP
2
C Slave on the SDA signal. The
19.
2
Product Specification
2
C Control Register.
1
®
F0822 Series
2
I2C Controller
C Shift reg-
2
C Shift
0
2
C
139