Texas Instruments MSP50C614 manual ±7. C614 Memory Map not drawn to scale

Models: MSP50C614

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Memory Organization: RAM and ROM

Figure 2±7. C614 Memory Map (not drawn to scale)

Program Memory

0x0000

Internal Test Code

 

 

2048 x 17 bit

0x07FF

(reserved)

 

0x0800

 

 

User ROM

 

30704 x 17 bit

 

(C614 : read-only)

 

(P614 : EPROM)

0x7F00

 

 

Macro Call Vectors

 

255 x 17 bit

 

(overlaps interrupt

 

vector locations)

0x7FF0

 

Usable Interrupt

 

 

Vectors²

0x7FF7

8 x 17 bit

 

 

0x7FF8

Unusable Interrupt

 

Vectors

0x7FFE

(reserved)

 

0x7FFF

RESET vector

 

 

 

Data Memory

0x0000

RAM

640 x 17 bit

0x027F

Peripheral Ports

0x00

PA0±7 data

 

 

0x04

PA0±7 ctrl

 

 

0x08

PB0±7 data

0x0C

 

PB0±7 ctrl

 

 

0x10

PC0±7 data

 

 

0x14

PC0±7 ctrl

0x18

 

PD0±7 data

 

 

0x1C

PD0±7 ctrl

0x20

 

PE0±7 data

 

 

0x24

PE0±7 ctrl

 

 

0x28

PF0±7 data

 

 

0x2C

PG0±15 data

0x2F

 

RTRIM

0x30

 

 

DAC data

0x34

 

 

DAC ctrl

 

 

 

 

0x38

IntGenCtrl

0x39

 

 

IFR

 

 

 

 

0x3A

PRD1

0x3B

 

 

TIM1

 

 

 

 

0x3D

ClkSpdCtrl

 

 

Shaded boxes highlight dedicated ROM and control registers.

0x3E

PRD2

 

 

 

 

0x3F

TIM2

 

 

2.6.2Peripheral Communications (Ports)

Peripheral functions in the C614 are controlled using one or more of the I/O address-mapped communications ports. Table 2±2 describes the ports.

The width of each mapped location, shown in width of location, is independent of the address spacing. In other words, some registers are smaller in width than the spacing between neighboring addresses. The few unused bits appear to the right of the LSB values within the DAC Data register, address 0x30 (refer to Section 3.2.2, DAC Control and Data Registers).

2-16

Page 46
Image 46
Texas Instruments MSP50C614 manual ±7. C614 Memory Map not drawn to scale, Peripheral Communications Ports