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HD6432142 Datasheet(PDF) 316 Page - Renesas Technology Corp |
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HD6432142 Datasheet(HTML) 316 Page - Renesas Technology Corp |
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316 / 1177 page  Section 8 I/O Ports Rev. 4.00 Sep 27, 2006 page 272 of 1130 REJ09B0327-0400 8.12 Port B 8.12.1 Overview Port B is an 8-bit I/O port. Port B pins also have HIF input/output pins ( CS3, CS4, HIRQ3, HIRQ4) (H8S/2148 Group and H8S/2147N only), and a data bus input/output function (as D7 to D0). The pin functions depend on the operating mode. Figure 8.19 shows the port B pin configuration. PB7/D7 PB6/D6 PB5/D5 PB4/D4 PB3/D3/ CS4 PB2/D2/ CS3 PB1/D1/HIRQ4 PB0/D0/HIRQ3 Port B Port B pins D7 (I/O) D6 (I/O) D5 (I/O) D4 (I/O) D3 (I/O) D2 (I/O) D1 (I/O) D0 (I/O) Mode 1, modes 2 and 3 (EXPE = 1) when ABW = 0 PB7 (I/O) PB6 (I/O) PB5 (I/O) PB4 (I/O) PB3 (I/O)/ CS4 (Input) PB2 (I/O)/ CS3 (Input) PB1 (I/O)/HIRQ4 (Output) PB0 (I/O)/HIRQ3 (Output) Mode 1, modes 2 and 3 (EXPE = 1) when ABW = 1, and mode 1, modes 2 and 3 (EXPE = 0) Figure 8.19 Port B Pin Functions |
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