Z85C3008VSG Zilog, Z85C3008VSG Datasheet - Page 103

• Manufacturer Part Number: Z85C3008VSG
• Description: IC 8MHZ Z8500 CMOS SCC 44-PLCC
• Manufacturer: Zilog
• Series: SCCr

Specifications of Z85C3008VSG

• Processor Type: Z80
• Features: Error Detection and Multiprotocol Support
• Speed: 8MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 44-LCC (J-Lead)
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Cpu Speed: 8MHz
• Digital Ic Case Style: LCC
• No. Of Pins: 44
• Supply Voltage Range: 5V
• Operating Temperature Range: 0°C To +70°C
• Svhc: No SVHC (18-Jun-2010)
• Base Number: 85
• Rohs Compliant: Yes
• Clock Frequency: 8MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-3932; Z85C3008VSG

SCC™/ESCC™ User’s Manual
Data Communication Modes
4.3 BYTE-ORIENTED SYNCHRONOUS MODE (Continued)
4-28
Interface
to SCC
RR1
In SDLC Mode the following definitions apply.
- All Sent bypasses MUX and equals contents of SCC Status Register.
- Parity Bits bypasses MUX and does the same.
- EOF is set to 1 whenever reading from the FIFO.
2 Bits
Overrun, CRC Error
6-Bit MUX
5 Bits
SCC Status Reg
Residue Bits(3)
Figure 4-15. SDLC Frame Status FIFO (N/A on NMOS)
6 Bits
RR1
10 Deep by 19 Bits Wide
5 Bits
Bit 7
FIFO Array
EOF = 1
RR7 D7
FIFO Overflow Status Bit
MSB pf RR(7) is set on Status FIFO overflow
Bit 6
Frame Status FIFO Circuitr
RR7 D6
FIFO Data available status bit Status Bit set to 1
When reading from FIFO.
Bits 5-0
Byte Counter
6 Bits
RR7 D5-D0 + RR6 D7 - D0
Byte Counter Contains 14 bits
for a 16 KByte maximum count.
14 Bits
RR6
8 Bits
EN
End of Frame Signal
Status Read Comp
Reset on Flag Detect
Increment on Byte DET
Enable Count in SDLC
Over
4-Bit Comparator
Head Pointer
4-Bit Counter
4-Bit Counter
Tail Pointer
Equal
WR(15) Bit 2
Set Enables
Status FIFO
FIFO Enable
UM010901-0601