Z8F2480AN020SG Zilog, Z8F2480AN020SG Datasheet - Page 306
Z8F2480AN020SG
Manufacturer Part Number
Z8F2480AN020SG
Description
MCU 8BIT 24KB FLASH 44LQFP
Manufacturer
Zilog
Series
Encore!® XP®r
Specifications of Z8F2480AN020SG
Core Processor
Z8
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, IrDA, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
Number Of I /o
37
Program Memory Size
24KB (24K x 8)
Program Memory Type
FLASH
Ram Size
3K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
44-LQFP
Processor Series
Z8F248x
Core
eZ8
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
I2C, SPI, UART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
37
Number Of Timers
3
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
0 C
On-chip Adc
10 bit, 8 Channel
For Use With
770-1002 - ISP 4PORT ZILOG Z8 ENCORE! MCU269-4643 - KIT DEV Z8 ENCORE XP 28-PIN269-4630 - DEV KIT FOR Z8 ENCORE 8K/4K269-4629 - KIT DEV Z8 ENCORE XP 28-PIN269-4628 - KIT DEV Z8 ENCORE XP 8-PIN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
269-4676
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
Z8F2480AN020SG
Manufacturer:
Zilog
Quantity:
85
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PS025011-1010
OCDCNTR Register
not automatically enable interrupts when using this feature. Interrupts are typically dis-
abled during critical sections of code where interrupts do not occur (such as adjusting the
stack pointer or modifying shared data).
Host software can poll the IDLE bit of the OCDSTAT register to determine if the OCD
is looping on a BRK instruction. When software wants to stop the CPU on the BRK
instruction on which it is looping, software must not set the DBGMODE bit of the
OCDCTL register. The CPU may have vectored to an interrupt service routine. Instead,
software clears the BRKLP bit. This allows the CPU to finish the interrupt service
routine it may be in and return to the BRK instruction. When the CPU returns to the
BRK instruction on which it was previously looping, it automatically sets the DBGMODE
bit and enters DEBUG mode.
The majority of the OCD commands remain disabled when the eZ8 CPU is looping on a
BRK instruction. The eZ8 CPU must be in DEBUG mode before these commands can be
issued.
Breakpoints in Flash Memory
The
byte in Flash memory. To implement a Breakpoint, write
writing the current instruction. To remove a Breakpoint, erase the corresponding page of
Flash memory and reprogram with the original data.
The On-Chip Debugger contains a multipurpose 16-bit Counter Register. It can be used
for the following:
•
•
•
When configured as a counter, the OCDCNTR register starts counting when the On-Chip
Debugger leaves DEBUG mode and stops counting when it enters DEBUG mode again or
when it reaches the maximum count of
resets itself to 0000H when the OCD exits DEBUG mode if it is configured to count clock
cycles between breakpoints.
If the OCDCNTR resister is configured to generate a BRK when it counts down to zero, it
will not be reset when the CPU starts running. The counter will start counting down
toward zero once the On-Chip debugger leaves DEBUG mode. If the On-Chip Debugger
enters DEBUG mode before the OCDCNTR register counts down to zero, the OCDCNTR
will stop counting.
If the OCDCNTR register is configured to generate a BRK when the program counter
matches the OCDCNTR register, the OCDCNTR register will not be reset when the CPU
resumes executing and it will not be decremented when the CPU is running. A BRK will
Count system clock cycles between Breakpoints.
Generate a BRK when it counts down to 0.
Generate a BRK when its value matches the Program Counter.
BRK
instruction is opcode
P R E L I M I N A R Y
00H
, which corresponds to the fully programmed state of a
FFFFH
. The OCDCNTR register automatically
Z8 Encore! XP
00H
to the desired address, over-
Product Specification
®
On-Chip Debugger
F1680 Series
292
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