H8SLASH3002 datasheet(283/700 Pages) RENESAS

283 / 700 page

9.8 Port B

9.8.1 Overview

Port B is an 8-bit input/output port that is also used for TPC output (TP15 to TP8), ITU

input/output (TIOCB4, TIOCB3, TIOCA4, TIOCA3), ITU output (TOCXB4, TOCXA4), DMAC

input (DREQ1, DREQ0), and ADTRG input to the A/D converter. Port B has the same set of pin

functions in all operating modes. Figure 9-9 shows the pin configuration of port B.

Pins in port B can drive one TTL load and a 30-pF capacitive load. They can also drive a LED or

a darlington transistor pair. Pins PB3 to PB0 have Schmitt-trigger inputs.

Figure 9-9 Port B Pin Configuration

9.8.2 Register Descriptions

Table 9-13 summarizes the registers of port B.

Table 9-13 Port B Registers

Address*

Name

Abbreviation

R/W

Initial Value

H'FFD4

Port B data direction register

PBDDR

H'00

H'FFD6

Port B data register

PBDR

R/W

H'00

Note: * Lower 16 bits of the address.

Port B

PB (input/output)/TP

(output)/DREQ (input)/

(input)

PB (input/output)/TP

(output)/DREQ (input)

PB (input/output)/TP

(output)/TOCXB (output)

PB (input/output)/TP

(output)/TOCXA (output)

Port B pins

PB (input/output)/TP

(output)/TIOCB (input/output)

PB (input/output)/TP

(output)/TIOCA (input/output)

PB (input/output)/TP

(output)/TIOCB (input/output)

PB (input/output)/TP

(output)/TIOCA (input/output)

ADTRG

269

H8/3002 Datasheet(PDF) 283 Page - Renesas Technology Corp

H8/3002 Datasheet(HTML) 283 Page - Renesas Technology Corp

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

Datasheet Download

Link URL