ISP1130DL Philips Semiconductors, ISP1130DL Datasheet - Page 36

• Manufacturer Part Number: ISP1130DL
• Description: Universal Serial Bus compound hub with integrated keyboard controller
• Manufacturer: Philips Semiconductors

Table 47: SFR memory map
Philips Semiconductors
9397 750 06895
Objective specification
Address
range
(Hex)
F8 to FF
F0 to F7
E8 to EF
E0 to E7
D8 to DF
D0 to D7
C8 to CF
C0 to C7
B8 to BF
B0 to B7
A8 to AF
A0 to A7
98 to 9F
90 to 97
88 to 8F
80 to 87
I2C0CON
USBCON
TCON
PSW
ACC
P3
P2
P1
P0
IP
IE
B
0
10.3.1 Program Status Word register (PSW)
USBCONA
I2C0STA
The PSW register of the 80C51 is bit-addressable. The names and functions of the
bits are shown in
Table 48: PSW register: bit allocation
Table 49: PSW register: bit description
[1]
Bit
PSW.7
PSW.6
PSW.5
PSW.4
PSW.3
PSW.2
PSW.1
PSW.0
TMOD
SP
1
[1]
CY
All bits are individually addressable.
7
Symbol
CY
AC
F0
RS1
RS0
OV
-
P
I2C0DAT
DPL
TL0
AC
6
2
Table 48
Rev. 01 — 23 March 2000
Description
carry flag; receives carry out from bit 7 of ALU operands
auxiliary carry flag; receives carry out from bit 3 of addition
operands
flag 0; general purpose status flag
register bank selector bit 1; see
register bank selector bit 0; see
overflow flag; set by arithmetic operations
user-definable general purpose flag
parity flag, indicating the number of ‘1’ bits in the accumulator
(logic 0 = even, logic 1 = odd); refreshed by hardware upon each
instruction cycle
I2C0ADR
F0
5
DPH
and
TL1
3
Table
Offset
RS1
USB compound hub with keyboard controller
4
49.
TH0
4
RS0
3
TH1
5
Table 50
Table 50
OV
2
© Philips Electronics N.V. 2000. All rights reserved.
WDTKEY
6
ISP1130
1
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PCON
WDT
7
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