56F8335 datasheet(34/160 Pages) FREESCALE

34 / 160 page

56F8335 Technical Data, Rev. 1

Freescale Semiconductor

Preliminary

Figure 3-4 Connecting an External Clock Signal Register

3.3 Registers

When referring to the register definitions for the OCCS in the 56F8300 Peripheral User Manual, use the

NOT contain this oscillator.

Part 4 Memory Map

4.1 Introduction

The 56F8335 and 56F8135 devices are 16-bit motor-control chips based on the 56800E core. These parts

use a Harvard-style architecture with two independent memory spaces for Data and Program. On-chip

RAM and Flash memories are used in both spaces.

This section provides memory maps for:

•

Program Address Space, including the Interrupt Vector Table

•

Data Address Space, including the EOnCE Memory and Peripheral Memory Maps

On-chip memory sizes for each device are summarized in Table 4-1. Flash memories’ restrictions are

identified in the “Use Restrictions” column of Table 4-1.

Note: Data Flash and Program RAM are NOT available on the 56F8135 device.

Table 4-1 Chip Memory Configurations

On-Chip Memory

56F8335

56F8135

Use Restrictions

Program Flash

64KB

Erase / Program via Flash interface unit and word writes to

CDBW

Data Flash

8KB

—

Erase / Program via Flash interface unit and word writes to

CDBW. Data Flash can be read via either CDBR or XDB2,

but not by both simultaneously

Program RAM

4KB

—

None

Data RAM

8KB

None

Program Boot Flash

8KB

Erase / Program via Flash Interface unit and word writes to

CDBW

XTAL

EXTAL

External

VSS

Clock

Note: When using an external clocking

source with this configuration, the input

“CLKMODE” should be high and COHL bit in

the OSCTL register should be set to 1.

56F8335 数据表(PDF) 34 Page - Freescale Semiconductor, Inc

56F8335 数据表(HTML) 34 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

数据表下载