ST10F276 datasheet(137/229 Pages) STMICROELECTRONICS

137 / 229 page

ST10F276

137/229

22.2

General purpose registers (GPRs)

The GPRs form the register bank that the CPU works with. This register bank may be

located anywhere within the internal RAM via the Context Pointer (CP). Due to the

addressing mechanism, GPR banks reside only within the internal RAM. All GPRs are bit-

addressable.

The first 8 GPRs (R7...R0) may also be accessed bytewise. Other than with SFRs, writing to

a GPR byte does not affect the other byte of the respective GPR. The respective halves of

the byte-accessible registers have special names:

Table 65.

General purpose registers (GPRs)

Name

Physical

address

8-bit

addr

ess

Description

Reset

value

(CP) + 0

F0h

CPU general purpose (word) register R0

UUUUh

(CP) + 2

F1h

CPU general purpose (word) register R1

UUUUh

(CP) + 4

F2h

CPU general purpose (word) register R2

UUUUh

(CP) + 6

F3h

CPU general purpose (word) register R3

UUUUh

(CP) + 8

F4h

CPU general purpose (word) register R4

UUUUh

(CP) + 10

F5h

CPU general purpose (word) register R5

UUUUh

(CP) + 12

F6h

CPU general purpose (word) register R6

UUUUh

(CP) + 14

F7h

CPU general purpose (word) register R7

UUUUh

(CP) + 16

F8h

CPU general purpose (word) register R8

UUUUh

(CP) + 18

F9h

CPU general purpose (word) register R9

UUUUh

R10

(CP) + 20

FAh

CPU general purpose (word) register R10

UUUUh

R11

(CP) + 22

FBh

CPU general purpose (word) register R11

UUUUh

R12

(CP) + 24

FCh

CPU general purpose (word) register R12

UUUUh

R13

(CP) + 26

FDh

CPU general purpose (word) register R13

UUUUh

R14

(CP) + 28

FEh

CPU general purpose (word) register R14

UUUUh

R15

(CP) + 30

FFh

CPU general purpose (word) register R15

UUUUh

Table 66.

General purpose registers (GPRs) bytewise addressing

Name

Physical

address

8-bit

address

Description

Reset

value

RL0

(CP) + 0

F0h

CPU general purpose (byte) register RL0

UUh

RH0

(CP) + 1

F1h

CPU general purpose (byte) register RH0

UUh

RL1

(CP) + 2

F2h

CPU general purpose (byte) register RL1

UUh

RH1

(CP) + 3

F3h

CPU general purpose (byte) register RH1

UUh

RL2

(CP) + 4

F4h

CPU general purpose (byte) register RL2

UUh

RH2

(CP) + 5

F5h

CPU general purpose (byte) register RH2

UUh

ST10F276 датащи(PDF) 137 Page - STMicroelectronics

ST10F276 датащи(HTML) 137 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL