Z16C3516VSG Zilog, Z16C3516VSG Datasheet - Page 49

• Manufacturer Part Number: Z16C3516VSG
• Description: IC 16MHZ Z8500 CMOS ISCC 68-PLCC
• Manufacturer: Zilog
• Series: IUSC™r

Specifications of Z16C3516VSG

• Controller Type: Serial Communications Controller (SCC)
• Interface: USB
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 50mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 68-LCC (J-Lead)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4690-5; Z16C3516VSG

UM011001-0601
Stage
Legend:
* Usually G is a end-of-message character indicator.
† The status is latched on the Error FIFO for each received byte. In the calculation of F,
the CRC error flag in the Error FIFO will be 0 for an error free message.
d = disabled
e = enabled
A B C D E F G H
A = SYNC
B - F = Data with E = CRC1 and F = CRC2
G and H are arbitrary data
1
2
3
4
5
Note: No CRC Calculation on "D"
(Sync)
A
(Data1)
Coming into SCC
CPU Reads & Disca
Direction of Data
B
CPU Disables CR
CPU Enables CR
CPU Enables CR
Read H & Disca
H G F E D C B
Read RR1 D
H G F E D C
(Data2)
H G F E D C
CPU Read
CPU Read
CPU Read
CPU Read
CPU Read
C
H G F E D
H G F E
Table 4-8. Enabling and Disabling CRC on the Fly
H G F
(Data3)
H G
H
D
Register
(CRC1)
Shift
E
A
C
D
E
G
H
B
F
(CRC2)
F
Data FIFO
Receive
B
C
D
E
G
F
H
H
(Data)
G
Register
(Data)
Delay
G
H
C
D
E
B
F
*
CRC
d
d
d
e
e
d
e
e
e
Z16C35ISCC™ User’s Manual
Data Communication Modes
CRC Calc on B
CRC Calc on C
CRC Calc is
Disabled on D
CRC Calc on E
CRC Calc on F
CRC Calc on F *
Result latched in
Error FIFO †
Notes
4-15
4