EZ80L92AZ050SG Zilog, EZ80L92AZ050SG Datasheet - Page 53

• Manufacturer Part Number: EZ80L92AZ050SG
• Description: IC WEBSERVER 50MHZ 100LQFP
• Manufacturer: Zilog

Specifications of EZ80L92AZ050SG

• Processor Type: eZ80
• Features: High Speed, Single-Cycle Instruction-Fetch
• Speed: 50MHz
• Voltage: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Processor Series: EZ80L92x
• Core: eZ80
• Data Bus Width: 8 bit
• Program Memory Size: 64 KB
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 6
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: eZ80L920210ZCO
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-3878; EZ80L92AZ050SG

Table 12. Vectored Interrupt Operation (Continued)
PS013014-0107
Memory
Mode
ADL Mode
Non-maskable Interrupts
ADL
Bit
An active Low input on the NMI pin generates an interrupt request to the eZ80 CPU. This
non-maskable interrupt is always serviced by the eZ80 CPU, regardless of the state of the
Interrupt Enable flags (IEF1 and IEF2). The non-maskable interrupt is prioritized higher
than all maskable interrupts. The response of the eZ80 CPU to a non-maskable interrupt is
described in detail in eZ80
1
MADL
Bit
1
Operation
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 PC[23:0].
Push the 3-byte return address, PC[23:0], onto the SPL stack.
Push a 01h byte onto the SPL stack to indicate a restart from ADL mode
(because ADL = 1).
The ADL mode bit remains set to 1.
The interrupt vector address is located at {00h, I[7:0], IVECT[7:0]}.
PC[15:0] ← ( { 00h, I[7:0], IVECT[7:0] } ).
The ending Program Counter is { 00h, PC[15:0] }.
The interrupt service routine must end with RETI.L
←
←
0
0
®
CPU User Manual (UM0077).
Product Specification
Interrupt Controller
eZ80L92 MCU
47