Z8F082AHH020SG2156 Zilog, Z8F082AHH020SG2156 Datasheet - Page 33

• Manufacturer Part Number: Z8F082AHH020SG2156
• Description: IC ENCORE XP MCU FLASH 8K
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F082AHH020SG2156

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 17
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: Q5278375

UM012811-0904
Escaped Mode Addressing
Figure 10. Register Addressing Using 4-Bit Addresses
Escaped Mode Addressing with 8-bit Addresses
Using Escaped Mode Addressing 12-bit addresses can specify a Working Register. If the
high nibble of the 8-bit address is
ple, if Working Register R12 (
address operand in the opcode. To access Registers with addresses
the Working Group Pointer, RP[7:4], to
Escaped Mode Addressing with 12-bit Addresses
Using Escaped Mode Addressing, address mode ER for the source or destination can spec-
ify a Working Register with 4-bit addressing.
If the high byte of the source or destination address is EEH (11101110B), a Working Reg-
ister is inferred. For example, the operand EE3H selects Working Register R3. The full 12-
bit address is given by {RP[3:0], RP[7:4], 3H}.
To access Registers on Page EH (addresses E00H to EFFH), set the Page Pointer, RP[3:0],
to EH and set the Working Group Pointer, RP[7:4], to the desired Working Group.
One Operand
Instruction
(Example)
Addresses
Two 4-bit
(dst, src)
Program Memory
{dst[3:0],
src[3:0]}
Opcode
CH
) is the desired destination operand, use
EH
(1110b), a Working Register is inferred. For exam-
EH
or use indirect addressing.
{RP[3:0], RP[7:4], dst[3:0]}
{RP[3:0], RP[7:4], src[3:0]}
12-bit address is
12-bit address is
E0H
Addressing Modes
to
ECH
EFH
Register File
Destination
User Manual
Register
Register
Source
as the 8-bit
, either set
eZ8 CPU
23