Z0847006PSG Zilog, Z0847006PSG Datasheet - Page 294

• Manufacturer Part Number: Z0847006PSG
• Description: IC 6MHZ Z80 NMOS DART 40-DIP
• Manufacturer: Zilog
• Series: Z80r

Specifications of Z0847006PSG

• Processor Type: Z80
• Features: Dual Channel Asynchronous Receiver/Transmitter (DART)
• Speed: 6MHz
• Voltage: 5V
• Mounting Type: Through Hole
• Package / Case: 40-DIP (0.620", 15.75mm)
• Mounting Style: Through Hole
• Cpu Speed: 6MHz
• Digital Ic Case Style: DIP
• No. Of Pins: 40
• Supply Voltage Range: 5V
• Operating Temperature Range: 0°C To +70°C
• Svhc: No SVHC (18-Jun-2010)
• Base Number: 847006
• Rohs Compliant: Yes
• Clock Frequency: 6MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

274
UM008101-0601
<   % 2 7 2 G T K R J G T C N U
7 U G T / C P W C N
Figure 114. Write Register 0
Pointer Bits (D2-D0)
Bits D2-D0 are pointer bits that determine which write register the next
byte writes to or which read register the next byte reads from. The first byte
written to each channel after a reset (either by a Reset command or by the
external reset input) goes to WR0. Following a read or write to any register
(except WR0), the pointer points to WR0
Command Bits (D5-D3)
Three bits, D5-D3, are encoded to issue the seven basic Z80 SIO
commands
D7
0
0
1
1
D6
0
1
0
1
Null Code
Reset Rx CRC Checker
Reset Tx CRC Generator
Reset Tx Underrun/EOM Latch
D5
0
0
0
0
1
1
1
1
(Table
D4
0
0
1
1
0
0
1
1
13).
D3
0
1
0
1
0
1
0
1
Null Code
Send Abort (SDLC)
Reset Ext/Status Interrupts
Channel Reset
Enable INT on Next Ax Character
Reset TxINT Pending
Error Reset
Return from INT (CH-A Only)
D2
0
0
0
0
1
1
1
1
D1
0
0
1
1
0
0
1
1
D0
0
1
0
1
0
1
0
1
Register 0
Register 1
Register 2
Register 3
Register 4
Register 5
Register 6
Register 7
Serial Input/Output