Z8038018FSG Zilog, Z8038018FSG Datasheet - Page 91

• Manufacturer Part Number: Z8038018FSG
• Description: IC 16 BIT Z80 MPU 100-QFP
• Manufacturer: Zilog

Specifications of Z8038018FSG

• Processor Type: Z380
• Features: 16-Bit, High-Performance Enhanced Z80 CPU
• Speed: 18MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 100-QFP
• Processor Series: Z80380x
• Core: Z380
• Program Memory Size: 64 KB
• Maximum Clock Frequency: 18 MHz
• Operating Supply Voltage: 0 V to 5 V
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Interrupt Enable Register
IE3-IE0 (Interrupt Request Enable Flags). These flags
individually indicate F /INT3, /INT2, /INT1 or /INT0 is
enabled. Note that these flags are conditioned with enable
and disable interrupt instructions (with arguments).
Assigned Vectors Base Register
AB15-AB9 (Assigned Vectors Base). The Interrupt Regis-
ter Extension, Iz, together with AB15-AB9, define the base
address of the assigned interrupt vectors table in memory
space (Figure 26).
7
AVBR: 00000018H
R/W
7
IER: 00000017H
Read Only
AB15
0
--
0
Figure 26. Assigned Vectors Base Register
AB14 AB13 AB12 AB11 AB10 AB9
0
--
0
Figure 25. Interrupt Enable Register
0
0
--
0
0
--
IE3
0
0
Reserved bits 7-4. Read as 0s, should write to as 0s.
IE2
Reserved Bit 0. Read as 0, should write to as 0.
0
0
IE1
0
0
IE0
--
0
1
0
0
Reset Value
Assigned Vectors
Base
Reset Value
Reserved
Program as 0
Read as 0
Encoded Interrupt
Requests
Interrupt Requests
Enable
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