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GMS81C7008 数据表(PDF) 40 Page - Hynix Semiconductor |
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GMS81C7008 数据表(HTML) 40 Page - Hynix Semiconductor |
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40 / 123 page  GMS81C7008/7016 36 APR., 2001 Ver 2.01 R4 and R4DD register: R4 is an 8-bit CMOS bidirectional I/O port (address 0C4H). Each I/O pin can independently used as an input or an output through the R4DD register (address 0CCH). After Reset, R4 po rt is used as LCD segmen t o utput SEG0~SEG7. To use general I/O ports user should be written ap- propriate value into the LPMR (0F3H). R5 and R5DD register: R5 is an 8-bit CMOS bidirectional I/O port (address 0C5H). Each I/O pin can independently used as an input or an output through the R4DD register (address 0CDH). After Reset, R5 po rt is used as LCD segmen t o utput SEG8~SEG15. To use general I/O ports user should be written appropriate value into the LPMR (0F3H). R6 and R6DD register: R6 is an 8-bit CMOS bidirectional I/O port (address 0C6H). Each I/O pin can independently used as an input or an output through the R6DD register (address 0CEH). After Re set, R6 p ort is u s ed as LC D segm ent outpu t SEG16~SEG23. To use general I/O ports user should be written appropriate value into the LPMR (0F3H). LCD pin function Port pin SEG0 (LCD segment 0 signal output) SEG1 (LCD segment 1 signal output) SEG2 (LCD segment 2 signal output) SEG3 (LCD segment 3 signal output) SEG4 (LCD segment 4 signal output) SEG5 (LCD segment 5 signal output) SEG6 (LCD segment 6 signal output) SEG7 (LCD segment 7 signal output) R40 R41 R42 R43 R44 R45 R46 R47 LCD pin function Port pin SEG8 (LCD segment 8 signal output) SEG9 (LCD segment 9 signal output) SEG10 (LCD segment 10 signal output) SEG11 (LCD segment 11 signal output) SEG12 (LCD segment 12 signal output) SEG13 (LCD segment 13 signal output) SEG14 (LCD segment 14 signal output) SEG15 (LCD segment 15 signal output) R50 R51 R52 R53 R54 R55 R56 R57 R4 Data Register R4 ADDRESS: 0C4H RESET VALUE: 00H R47 R46 R45 R44 R43 R42 R41 R40 Port Direction R4 Direction Register R4DD ADDRESS: 0CCH RESET VALUE: 00H 0: Input 1: Output Input / Output data LCD pin function Port pin SEG16 (LCD segment 16 signal output) SEG17 (LCD segment 17 signal output) SEG18 (LCD segment 18 signal output) SEG19 (LCD segment 19 signal output) SEG20 (LCD segment 20 signal output) SEG21 (LCD segment 21 signal output) SEG22 (LCD segment 22 signal output) SEG23 (LCD segment 23 signal output) R60 R61 R62 R63 R64 R66 R66 R67 R5 Data Register R5 ADDRESS: 0C5H RESET VALUE: 00H R57 R56 R55 R54 R53 R52 R51 R50 Port Direction R5 Direction Register R5DD ADDRESS: 0CDH RESET VALUE: 00H 0: Input 1: Output Input / Output data R6 Data Register R6 ADDRESS: 0C6H RESET VALUE: 00H R67 R66 R65 R64 R63 R62 R61 R60 Port Direction R6 Direction Register R6DD ADDRESS: 0CEH RESET VALUE: 00H 0: Input 1: Output Input / Output data |
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