Z86D99 ZILOG [Zilog, Inc.], Z86D99 Datasheet - Page 20

• Manufacturer Part Number: Z86D99
• Description: Low-Voltage Micro controllers with ADC
• Manufacturer: ZILOG [Zilog, Inc.]

PS003807-1002
Figure 6. Standard Z8 Register File (Working Reg. Groups 0–F, Bank 0)
Z8 Expanded Register File
In addition to the Standard Z8 Register File (Bank 0), Expanded Register File
Banks F and D of Working Register Group 0 have been implemented on the
Z86D99/Z86L99. Figure 7 illustrates the Z8 Expanded Register File architecture.
These two expanded register file banks of Working Register Group 0 provide a
total of 32 additional RAM control and status registers. The Z86D99/Z86L99 fam-
ily has implemented 21 of the 32 available registers.
Grp/Bnk
( F0h )
( E0h )
( D0h )
( C0h )
( B0h )
( A0h )
( 90h )
( 80h )
( 70h )
( 60h )
( 50h )
( 40h )
( 30h )
( 20h )
( 10h )
( 00h )
r0 to 15
Reg
r0 to 15 General-purpose RAM registers
r0 to 15 General-purpose RAM registers
r0 to 15 General-purpose RAM registers
r0 to 15 General-purpose RAM registers
r0 to 15 General-purpose RAM registers
r0 to 15 General-purpose RAM registers
r0 to 15 General-purpose RAM registers
r0 to 15 General-purpose RAM registers
r0 to 15 General-purpose RAM registers
r8 to 15 General-purpose RAM registers
r0 to 7
r0 to 15 Control and Status Registers
r0 to 15 General-purpose RAM registers
r0 to 15 General-purpose RAM registers
r0 to 15 General-purpose RAM registers
r0 to 15 General-purpose RAM registers
P
Working Register Group Function
General-purpose RAM registers
I/O Port Registers
R
E
L
I
M
Z86D990/Z86D991 OTP and Z86L99X ROM
I
Low-Voltage Microcontrollers with ADC
N
A
R
Y
13