ZGP323HAH2816G Zilog, ZGP323HAH2816G Datasheet - Page 28

• Manufacturer Part Number: ZGP323HAH2816G
• Description: IC Z8 GP MCU 16K OTP 28SSOP
• Manufacturer: Zilog
• Series: Z8® GP™r

Specifications of ZGP323HAH2816G

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: HLVD, POR, WDT
• Number Of I /o: 24
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: OTP
• Ram Size: 237 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Other names: 269-4314; ZGP323HAH2816G

PS023807-0707
The upper nibble of the register pointer (see
group, of 16 bytes in the register file, is accessed out of the possible 256. The lower nibble
selects the expanded register file bank and, in the case of the Z8 GP family, banks 0, F, and
D are implemented. A
addressed. Any other value from
register bank.
Example: Z8 GP: (See
R253 RP = 00h
R0 = Port 0
R1 = Port 1
R2 = Port 2
R3 = Port 3
But if:
R253 RP = 0Dh
R0 = CTR0
R1 = CTR1
R2 = CTR2
R3 = Reserved
The counter/timers are mapped into ERF group D. Access is easily performed using the
following:
R253 RP
D7
Default Setting After Reset = 0000 0000
LD
for access to bank D
register group 0)
LD
LD
D6
D5
D4
Figure 14. Register Pointer
0H
D3
in the lower nibble allows the normal register file (bank 0) to be
Figure 13
D2
1H
D1
to
on page 22)
RP, #0Dh
R0,#xx
1, #xx
FH
D0
exchanges the lower 16 registers to an expanded
Figure
Expanded Register
File Pointer
Working Register
Pointer
14) selects which working register
Product Specification
; Select ERF D
; (working
; load CTR0
; load CTR1
Functional Description
ZGP323H
23