7630 datasheet(31/238 Pages) RENESAS

31 / 238 page

1-15

7630 Group User’s Manual

+$5':$5(

Port Pull-up/pull-down Function

Each pin of ports P0 to P4 except P11 is equipped with a programma-

ble pull-up transistor. P32/CRX and P40/KW0 to P47/KW7 are

equipped with programmable pull-down transistors as well. The pull-

up function of P0 to P3 can be controlled by the corresponding port

pull-up control registers (see Structure of port pull-up/down control

registers). The pull-up/down function of ports P32 and P4 can be con-

trolled by the corresponding port pull-up/pull-down registers together

with the polarity control register (see Structure of polarity control reg-

ister).

Fig. 13 Structure of port pull-up/down control registers

Fig. 14 Structure of polarity control register

P3j pull-up transistor control bit (j = 0, 1)

P32 pull-up/down transistor control bit

P3j pull-up transistor control bit (j = 3, 4)

Not used (“0” when read, do not write “1”)

Pij pull-up transistor control bit (j = 0 to 7)

0 : Pull-up transistor disabled

1 : Pull-up transistor enabled

Port Pi pull-up control register (address 002816 + i) (i = 0, 2)

PUP0, PUP2

Port P1 pull-up control register (address 002916)

PUP1

Port P3 pull-up control register (address 002B16)

PUP3

P4j pull-up/down transistor control bit (j = 0 to 7)

Not used (“0” when read, do not write “1”)

P1j pull-up transistor control bit (j = 2 to 7)

0 : Pull-up/down transistor disabled

1 : Pull-up/down transistor enabled

Port P4 pull-up/down control register (address 002C16)

PUP4

Key-on wake-up polarity control bit

0 : Low level active

1 : High level active

CAN module dominant level control bit

0 : Low level dominant

1 : High level dominant

Not used (undefined when read)

Polarity control register (address 002F16)

PCON

I/O PORTS

7630 Datasheet(PDF) 31 Page - Renesas Technology Corp

7630 Datasheet(HTML) 31 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