ZLF645E0H2864G Zilog, ZLF645E0H2864G Datasheet - Page 51

• Manufacturer Part Number: ZLF645E0H2864G
• Description: IC MCU 64K FLASH 1K RAM 28-SSOP
• Manufacturer: Zilog
• Series: Crimzon™ ZLFr

Specifications of ZLF645E0H2864G

• Core Processor: Z8 LXMC
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, WDT
• Number Of I /o: 24
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.9 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Oscillator Type: -
• Other names: 269-4719

PS026407-0408
P orts 00h -04h
C P U C ontrol
R egisters
F 0 h-F F h
05h-E F h
P urpose
G eneral
**
B ank 0
= B ank-Independent A ddress (A lw ays A ccesses B ank 0 )
For 20 and 28 pin parts, the P ort01 and P ort04 locations
becom e available for use as general purpose registers
shadow registers implemented within the RAM memory. This enables the entire 1K or 512
B, depending on the product, of the RAM memory to be used for the stack.
8-bit Stack Addressability
For 8-bit stack addressability, only the SPL register is used for stack addressing and stack
operations that use the stack pointer always address Bank 0, independent of the RP[3:0]
setting. For more details on the stack, refer to Z8
(UM0215).
When in 8-bit stack addressability mode, the Bank 0 register FEh can be used to store user
data. See
**
B anks 1-3
Stack Pointer Register
Figure 13. Register File 8-Bit Banked Address Map
P orts 00h -04h
C P U C ontrol
R egisters
F 0 h-F F h
P urpose
05h-E F h
G eneral
C P U C ontrol
F 0 h-F F h
C P U C ontrol
F 0 h-F F h
**
on page 48.
C P U C ontrol
P eripheral
R egisters
F 0 h-F F h
P urpose
10h-E F h
0 0 h-0 F h
G eneral
B ank D
B ank D
C ontrol
®
LXMC CPU Core User Manual
ZLF645 Series Flash MCUs
Product Specification
C P U C ontrol
P eripheral
R egisters
F 0 h-F F h
10h-E F h
P urpose
0 0 h-0 F h
G eneral
C ontrol
B ank F
B ank F
Register File
43