EZ80190AZ050EC Zilog, EZ80190AZ050EC Datasheet - Page 148

• Manufacturer Part Number: EZ80190AZ050EC
• Description: IC WEBSERVER 50MHZ XTEMP 100lQFP
• Manufacturer: Zilog

Specifications of EZ80190AZ050EC

• Processor Type: eZ80
• Features: High Speed, Single-Cycle Instruction-Fetch
• Speed: 50MHz
• Voltage: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3123

Table 75. Vectored Interrupt Operation
PS006614-1208
Memory
Mode
Z80
ADL Mode
®
Mode 0
ADL
Bit
1
MADL
Bit
0
0
Operation
Read the LSB of the interrupt vector placed on the internal vectored interrupt
bus, IVECT [7:0], by the interrupting peripheral.
•
•
•
•
•
•
•
•
•
Read the LSB of the interrupt vector placed on the internal vectored interrupt
bus, IVECT [7:0], by the interrupting peripheral.
•
•
•
•
•
•
•
•
•
IEF1
IEF2
The Starting Program Counter is effectively {MBASE, PC[15:0]}.
Push the 2-byte return address PC[15:0] onto the ({MBASE,SPS}) stack.
The ADL mode bit remains cleared to 0.
The interrupt vector address is {MBASE, I[7:0], IVECT[7:0]}.
PC[15:0]
The Ending Program Counter is effectively {MBASE, PC[15:0]} =
({MBASE, I[7:0], IVECT[7:0]})
The interrupt service routine must end with RETI.
IEF1
IEF2
The Starting Program Counter is PC[23:0].
Push the 3-byte return address, PC[23:0], onto the SPL stack.
The ADL mode bit remains set to 1.
The interrupt vector address is {00h, I[7:0], IVECT[7:0]}.
PC[23:0]
The Ending Program Counter is PC[23:0] = ({00h, I[7:0], IVECT[7:0]}).
The interrupt service routine must end with RETI.
←
←
←
←
0
0
0
0
←
←
({MBASE, I[7:0], IVECT[7:0]})
({00h, I[7:0], IVECT[7:0]})
.
.
Product Specification
Interrupt Controller
eZ80190
138