PC912XDP512F0MPVR datasheet(832/1348 Pages) FREESCALE

832 / 1348 page

Chapter 22 DP512 Port Integration Module (S12XDP512PIMV2)

MC9S12XDP512 Data Sheet, Rev. 2.21

834

Freescale Semiconductor

22.3.2.11 S12X_EBI Ports, BKGD, VREGEN Pin Pull-up Control Register (PUCR)

Read: Anytime in single-chip modes.

Write: Anytime, except BKPUE which is writable in special test mode only.

This register is used to enable pull-up devices for the associated ports A, B, C, D, E, and K. Pull-up devices

are assigned on a per-port basis and apply to any pin in the corresponding port that is currently configured

as an input.

76543210

PUPKE

BKPUE

PUPEE

PUPDE

PUPCE

PUPBE

PUPAE

Reset

11010000

= Unimplemented or Reserved

Figure 22-13. S12X_EBI Ports, BKGD, VREGEN Pin Pull-up Control Register (PUCR)

Table 22-14. PUCR Field Descriptions

Field

Description

PUPKE

Pull-up Port K Enable

0 Port K pull-up devices are disabled.

1 Enable pull-up devices for Port K input pins.

BKPUE

BKGD and VREGEN Pin Pull-up Enable

0 BKGD and VREGEN pull-up devices are disabled.

1 Enable pull-up devices on BKGD and VREGEN pins.

PUPEE

Pull-up Port E Enable

0 Port E pull-up devices on bit 7, 4–0 are disabled.

1 Enable pull-up devices for Port E input pins bits 7, 4–0.

Note: Bits 5 and 6 of Port E have pull-down devices which are only enabled during reset. This bit has no effect

on these pins.

PUPDE

Pull-up Port D Enable

0 Port D pull-up devices are disabled.

1 Enable pull-up devices for all Port D input pins.

PUPCE

Pull-up Port C Enable

0 Port C pull-up devices are disabled.

1 Enable pull-up devices for all Port C input pins.

PUPBE

Pull-up Port B Enable

0 Port B pull-up devices are disabled.

1 Enable pull-up devices for all Port B input pins.

PUPAE

Pull-up Port A Enable

0 Port A pull-up devices are disabled.

1 Enable pull-up devices for all Port A input pins.

PC912XDP512F0MPVR 데이터시트(PDF) 832 Page - Freescale Semiconductor, Inc

PC912XDP512F0MPVR 데이터시트(HTML) 832 Page - Freescale Semiconductor, Inc

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

데이터시트 다운로드

링크 URL