GMS81C2012 datasheet(46/92 Pages) HYNIX

46 / 92 page

GMS81C2020/GMS81C2120

Hyundai Micro Electro nics

preliminary

Nov. 1999 Ver 0.0

12.7 R5 and R5IO registers

R5 is an 8-bit bidirectional I/O port (address CAH). Each

pin can be set individually as input and output through the

R5IO register (address CBH).In addition, Port R5 is multi-

plexed with Serial Peripheral Interface (SPI). The control

Peripheral Interface function.After reset, the R5IO register

value is "0", port may be used as general I/O ports. To se-

lect Serial Peripheral Interface function, write "1" to the

corresponding bit of R5FUNC.

Figure 12-7 Registers of Port R5

Table 12-1 Registers of Port R5FUNC

12.8 R6 and R6IO registers

R6 is an 8-bit bidirectional I/O port (address CCH). Each

port can be set individually as input and output through the

R6IO register (address CDH).

R67~R60 ports are multiplexed with Analog Input Port

( AN7~AN0 )..

Figure 12-8 Registers of Port R6

PORT

R5FUNC

[6:3]

Description

R56/

PWM1O/

T1O

R56 (Normal I/O Port)

PWM1 Data Output / Timer

1 Data Output

R55/SOUT

R55 (Normal I/O Port)

SPI Serial Data Output

R54/SIN

R54 (Normal I/O Port)

SPI Serial Data Input

R53/SCLK

R53 (Normal I/O Port)

0 [R5IO.3]

SCLKO

SPI Synchronous Clock

Output

1 [R5IO.3]

SCLKI

SPI Synchronous Clock

Input

R53

R52

R51

R50

INPUT / OUTPUT DATA

0 : INPUT PORT

1 : OUTPUT PORT

DIRECTION SELECT

R5 Data Register

ADDRESS : CAH

RESET VALUE : Undefined

R5 Direction Register

R5IO

ADDRESS : CBH

RESET VALUE : 00000000

R5 Function Selection Register

R5FUNC

ADDRESS : F6H

RESET VALUE : -0000---

R57

R56

R55

R54

SCLK

SIN

SOUT

PWM1O

0 : R56

1 : PWM1O/T1O

0 : R55

1 : SOUT

0 : R54

1 : SIN

0 : R53

1 : SCLK

0 [R5IO.3] : SCLKO

1 [R5IO.3] : SCLKI

R67

R66

R65

R64

R63

R62

R61

R60

INPUT / OUTPUT DATA

0 : INPUT PORT

1 : OUTPUT PORT

DIRECTION SELECT

R6 Data Register

ADDRESS : CCH

RESET VALUE : Undefined

R6 Direction Register

R6IO

ADDRESS : CDH

RESET VALUE : 00000000

ANSEL0

R6 Function Selection Register

R6FUNC

ADDRESS : F7H

RESET VALUE : 00000000

ANSEL7

ANSEL1

ANSEL2

ANSEL3

ANSEL4

ANSEL5

ANSEL6

0 : R60

1 : AN0

0 : R61

1 : AN1

0 : R62

1 : AN2

0 : R63

1 : AN3

0 : R64

1 : AN4

0 : R65

1 : AN5

0 : R66

1 : AN6

0 : R67

1 : AN7

GMS81C2012 Datasheet(PDF) 46 Page - Hynix Semiconductor

GMS81C2012 Datasheet(HTML) 46 Page - Hynix Semiconductor

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

Datasheet Download

Link URL