z8f1601 ZiLOG Semiconductor, z8f1601 Datasheet - Page 136

• Manufacturer Part Number: z8f1601
• Description: Z8 Encore!? Microcontroller With Flash Memory And 10-bit A/d Converter
• Manufacturer: ZiLOG Semiconductor

Table 66. I
Table 67. I
I
PS017609-0803
2
RESET
RESET
FIELD
FIELD
ADDR
ADDR
C Control Register Definitions
BITS
BITS
R/W
R/W
I
I
2
2
2
2
C Status Register
C Data Register
C Data Register (I2CDATA)
C Status Register (I2CSTAT)
TDRE
R/W
R
7
7
0
1
The I
write to a slave. This register also holds data that is loaded from the I
ing a read from a slave. The I
but is used only to buffer incoming and outgoing data.
The Read-only I
TDRE—Transmit Data Register Empty
When the I
When active, this bit causes the I
I
and the RD bit is set. This bit and the interrupt are cleared by writing to the I
RDRF—Receive Data Register Full
This bit is set active high when the I
2
C Controller is shifting in data during the reception of a byte or when shifting an address
2
C Data register holds the data that is to be loaded into the I
RDRF
R/W
2
R
6
6
0
0
C Controller is enabled, this bit is 1 when the I
2
C Status register indicates the status of the I
ACK
R/W
R
5
0
5
0
2
C Shift is not accessible in the Register File address space,
2
C Controller to generate an interrupt, except when the
R/W
10B
R
4
4
0
0
2
C Controller is enabled and the I
Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
DATA
F50H
F51H
R/W
RD
R
3
0
3
0
R/W
TAS
2
R
2
2
0
0
C Data register is empty.
2
C Controller.
2
C Shift register during a
2
2
C Shift register dur-
R/W
DSS
C Controller has
R
1
0
1
0
Z8 Encore!
2
I2C Controller
CD register.
NCKI
R/W
R
0
0
0
0
®
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