Z8F6421AN00ZEM Zilog, Z8F6421AN00ZEM Datasheet - Page 165
Z8F6421AN00ZEM
Manufacturer Part Number
Z8F6421AN00ZEM
Description
KIT ICE Z8 ENCORE 64K 44LQFP
Manufacturer
Zilog
Series
Z8 Encore!®r
Type
In-Circuit Emulator Systemr
Specifications of Z8F6421AN00ZEM
Contents
Emulator Board, Cables, Software and Documentation
For Use With/related Products
Z8 Encore! 44-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
269-3392
- Current page: 165 of 297
- Download datasheet (9Mb)
PS019921-0308
Follow the steps below for the data transfer for a read operation to a 10-bit addressed
slave:
1. Software writes
2. Software asserts the START and TXI bits of the I
3. The I
4. The I
5. After the first bit has been shifted out, a Transmit interrupt is asserted.
6. Software responds by writing the lower eight bits of address to the I
7. The I
8. If the I
9. The I
10. The I
11. Software responds by setting the START bit of the I
12. Software responds by writing 11110B followed by the 2-bit slave address and a 1
13. If only one byte is to be read, software sets the NAK bit of the I
14. After the I
Data register.
register.
during the next high period of SCL, the I
Status register. Continue with
If the slave does not acknowledge the first address byte, the I
NCKI bit and clears the ACK bit in the I
Not Acknowledge interrupt by setting the STOP and FLUSH bits and clearing the TXI
bit. The I
NCKI bits. The transaction is complete (ignore following steps).
register (second address byte).
I
repeated START and by clearing the TXI bit.
(read) to the I
acknowledge by pulling the SDA signal low during the next high period of SCL, the
I
If the slave does not acknowledge the second address byte, the I
NCKI bit and clears the ACK bit in the I
Not Acknowledge interrupt by setting the STOP and FLUSH bits and clearing the TXI
bit. The I
NCKI bits. The transaction is complete (ignore the following steps).
2
2
C Controller generates a Transmit interrupt.
C Controller sets the ACK bit in the I
2
2
2
2
2
C Controller sends the Start condition.
C Controller loads the I
C Controller completes shifting of the two address bits and a 0 (write).
C Controller loads the I
C Controller shifts out the second address byte. After the first bit is shifted, the
2
C slave acknowledges the first address byte by pulling the SDA signal low
2
2
C Controller sends the STOP condition on the bus and clears the STOP and
C Controller sends the STOP condition on the bus and clears the STOP and
2
C Controller shifts out the 2nd address byte, the I
2
C Data register.
11110B
followed by the two address bits and a 0 (write) to the I
2
2
step
C Shift register with the contents of the I
C Shift register with the contents of the I
9.
2
C Status register. Continue with
2
2
2
C Status register. Software responds to the
C Status register. Software responds to the
C Controller sets the ACK bit in the I
2
C Control register.
Z8 Encore! XP
2
C Control register to generate a
Product Specification
2
2
C slave sends an
C Controller sets the
2
2
C Controller sets the
C Control register.
®
2
C Data register.
F64XX Series
2
2
step
C Data
C Data
I2C Controller
15.
2
C
2
C
151
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