Z8F041APH020SG2156 ZiLOG, Z8F041APH020SG2156 Datasheet - Page 44
Z8F041APH020SG2156
Manufacturer Part Number
Z8F041APH020SG2156
Description
8-bit Microcontrollers - MCU 4K FLASH 1K RAM 128B NVDS
Manufacturer
ZiLOG
Datasheet
1.Z8F082ASJ020EG2156.pdf
(282 pages)
Specifications of Z8F041APH020SG2156
Rohs
yes
Core
eZ8
Processor Series
Z8F041xx
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
Program Memory Size
4 KB
Data Ram Size
1 KB
On-chip Adc
Yes
Operating Supply Voltage
2.7 V to 3.6 V
Operating Temperature Range
- 40 C to + 105 C
Package / Case
PDIP-20
Mounting Style
Through Hole
A/d Bit Size
10 bit
A/d Channels Available
8
Interface Type
UART
Maximum Operating Temperature
+ 105 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
17
Number Of Timers
2
Program Memory Type
Flash
Supply Voltage - Max
3.6 V
Supply Voltage - Min
2.7 V
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PS022827-1212
Stop Mode Recovery
External Reset Indicator
On-Chip Debugger Initiated Reset
and as long as four. A reset pulse three clock cycles in duration might trigger a reset; a
pulse four cycles in duration always triggers a reset.
While the RESET input pin is asserted Low, the Z8 Encore! XP F082A Series devices
remain in the Reset state. If the RESET pin is held Low beyond the System Reset time-
out, the device exits the Reset state on the system clock rising edge following RESET pin
deassertion. Following a System Reset initiated by the external RESET pin, the EXT sta-
tus bit in the Reset Status (RSTSTAT) Register is set to 1.
During System Reset or when enabled by the GPIO logic (see
RESET pin functions as an open-drain (active Low) reset mode indicator in addition to the
input functionality. This reset output feature allows a Z8 Encore! XP F082A Series device
to reset other components to which it is connected, even if that reset is caused by internal
sources such as POR, VBO or WDT events.
After an internal reset event occurs, the internal circuitry begins driving the RESET pin
Low. The RESET pin is held Low by the internal circuitry until the appropriate delay
listed in Table 8 has elapsed.
A Power-On Reset can be initiated using the On-Chip Debugger by setting the RST bit in
the OCD Control Register. The On-Chip Debugger block is not reset but the rest of the
chip goes through a normal system reset. The RST bit automatically clears during the sys-
tem reset. Following the system reset the POR bit in the Reset Status (RSTSTAT) Register
is set.
STOP Mode is entered by execution of a STOP instruction by the eZ8 CPU. See the
Power Modes
Mode Recovery (SMR), the CPU is held in reset for 66 IPO cycles if the crystal oscillator
is disabled or 5000 cycles if it is enabled. The SMR delay (see
T
Stop Mode Recovery does not affect on-chip registers other than the Watchdog Timer
Control Register (WDTCTL) and the Oscillator Control Register (OSCCTL). After any
Stop Mode Recovery, the IPO is enabled and selected as the system clock. If another sys-
tem clock source is required, the Stop Mode Recovery code must reconfigure the oscillator
control block such that the correct system clock source is enabled and selected.
The eZ8 CPU fetches the Reset vector at Program Memory addresses
and loads that value into the Program Counter. Program execution begins at the Reset vec-
SMR
, also includes the time required to start up the IPO.
chapter on page 32 for detailed STOP Mode information. During Stop
P R E L I M I N A R Y
Z8 Encore! XP
Table 20 on page
Table 135
Product Specification
Stop Mode Recovery
0002H
®
on page 233)
F082A Series
and
46), the
0003H
Low-
27
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