Z8F16800144ZCOG Zilog, Z8F16800144ZCOG Datasheet - Page 231
Z8F16800144ZCOG
Manufacturer Part Number
Z8F16800144ZCOG
Description
KIT DEV FOR Z8F642 MCU 44 PIN
Manufacturer
Zilog
Series
Z8 Encore!®r
Type
MCUr
Specifications of Z8F16800144ZCOG
Contents
Hardware, Software and Documentation
For Use With/related Products
Z8F642
For Use With
269-4661 - KIT ACC ETHERNET SMART CABLE
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
269-4678
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PS025011-1010
Operation
SDA and SCL Signals
Table 119. I
The I
mode, or with master arbitration. In MASTER/SLAVE mode, it can be used as the only
Master on the bus or as one of the several masters on the bus, with arbitration. In a
Multi-Master environment, the controller switches from MASTER to SLAVE mode on
losing arbitration.
Though slave operation is fully supported in MASTER/SLAVE mode, if a device is
intended to operate only as a slave, then SLAVE ONLY mode can be selected. In SLAVE
ONLY mode, the device will not initiate a transaction, even if the software inadvertently
sets the START bit.
The I
with most-significant bit first. SCL is the clock for the I
pin alternate functions are selected for their respective GPIO ports, the pins are
automatically configured for open-drain operation.
The Master is responsible for driving the SCL clock signal. During the Low period of the
clock, a slave can hold the SCL signal Low to suspend the transaction if it is not ready to
proceed. The Master releases the clock at the end of the Low period and notices that the
clock remains Low instead of returning to a High level. When the slave releases the clock,
the I
the amount of data transferred in one operation. When transmitting address, data, or an
Acknowledge, the SDA signal changes in the middle of the Low period of SCL
receiving address, Data, or an Acknowledge; the SDA signal is sampled in the middle of
the High period of SCL.
Name
I
I
I
I
I
I
2
2
2
2
2
2
C State
C Control
C Baud Rate High I2CBRH
C Baud Rate Low I2CBRL
C Mode
C Slave Address I2CSLVAD
2
2
2
C master continues the transaction. All data is transferred in bytes; there is no limit to
C Master/Slave Controller operates in MASTER/SLAVE mode, SLAVE ONLY
C circuit sends all addresses, Data, and Acknowledge signals over the SDA line,
2
C Master/Slave Controller Registers (Continued)
I2CCTL
I2CSTATE
I2CMODE
Abbreviation
P R E L I M I N A R Y
Description
Control register—basic control functions.
High byte of baud rate generator initialization value.
Low byte of baud rate generator initialization value.
State register.
Selects MASTER or SLAVE modes, 7-bit or 10-bit
addressing; configure address recognition, define
slave address bits [9:8].
Defines slave address bits [7:0].
Z8 Encore! XP
2
C bus. When the SDA and SCL
Product Specification
I2C Master/Slave Controller
®
F1680 Series
.
When
217
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