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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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UPD17062 데이터시트(PDF) 35 Page - Renesas Technology Corp |
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UPD17062 데이터시트(HTML) 35 Page - Renesas Technology Corp |
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35 / 298 page  33 µPD17062 5.1.4 Structure of Port Data Registers (port register) The port registers consist of 12 nibbles at addresses 70H to 73H of the banks of data memory. Fig. 5-5 shows the structure of the port registers. As shown in Fig. 5-5, the same port registers are allocated in BANK0 and BANK2. Thus, the port registers actually consist of eight nibbles. Fig. 5-5 Structure of Port Registers 5.1.5 Structure of General-Purpose Data Memory General-purpose data memory consists of that part of memory other than the system register and the port registers of data memory. General-purpose data memory consists of a total of 336 words, with 112 words in each of BANK0 to BANK2. 5.1.6 Unmounted Data Memory As shown in Fig. 5-6, nothing is assigned to bit 0 of address 72H in BANK1 of the port registers. For an explanation of this address, see Section 5.3.2. 70H 71H 72H 73H P0A P0B P0C P0D P1A P1B P1C Fixed at 0 BANK0 BANK2 BANK1 Port register Address |
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