Z8F041APH020SG2156 ZiLOG, Z8F041APH020SG2156 Datasheet - Page 201

• Manufacturer Part Number: Z8F041APH020SG2156
• Description: 8-bit Microcontrollers - MCU 4K FLASH 1K RAM 128B NVDS
• Manufacturer: ZiLOG

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

PS022827-1212
Frequency (MHz)
0.032768 (32 kHz)
System Clock
OCD Serial Errors
20.0
1.0
host is the character
plus 7 data bits), framed between High bits. The Auto-Baud Detector measures this period
and sets the OCD Baud Rate Generator accordingly.
The Auto-Baud Detector/Generator is clocked by the system clock. The minimum baud
rate is the system clock frequency divided by 512. For optimal operation with asynchro-
nous datastreams, the maximum recommended baud rate is the system clock frequency
divided by 8. The maximum possible baud rate for asynchronous datastreams is the sys-
tem clock frequency divided by 4, but this theoretical maximum is possible only for low
noise designs with clean signals. Table 108 lists minimum and recommended maximum
baud rates for sample crystal frequencies.
If the OCD receives a Serial Break (nine or more continuous bits Low) the Auto-Baud
Detector/Generator resets. Reconfigure the Auto-Baud Detector/Generator by sending
80H
The On-Chip Debugger can detect any of the following error conditions on the DBG pin:
•
•
•
When the OCD detects one of these errors, it aborts any command currently in progress,
transmits a four character long Serial Break back to the host and resets the Auto-Baud
Detector/Generator. A Framing Error or Transmit Collision may be caused by the host
sending a Serial Break to the OCD. Because of the open-drain nature of the interface,
returning a Serial Break break back to the host only extends the length of the Serial Break
if the host releases the Serial Break early.
The host transmits a Serial Break on the
XP F082A Series devices or when recovering from an error. A Serial Break from the host
resets the Auto-Baud Generator/Detector but does not reset the OCD Control Register. A
.
Serial Break (a minimum of nine continuous bits Low)
Framing Error (received
Transmit Collision (OCD and host simultaneous transmission detected by the OCD)
Recommended Maximum
Baud Rate (Kbps)
Table 108. OCD Baud-Rate Limits
80H
2500.0
. The character
125.0
P R E L I M I N A R Y
4.096
Stop
bit is Low)
80H
DBG
Standard PC Baud
has eight continuous bits Low (one Start bit
pin when first connecting to the Z8 Encore!
Recommended
Rate (bps)
1,843,200
115,200
2,400
Z8 Encore! XP
Product Specification
Minimum Baud
Rate (Kbps)
®
39
F082A Series
1.95
0.064
Operation
184