FT800 datasheet(36/55 Pages) FTDI

36 / 55 page

Document No.: FT_000792

FT800

Embedded Video Engine

Datasheet Version 1.1

Clearance No.: FTDI# 334

FT800 Memory Map

All memory and registers in the FT800 core are memory mapped in 22-bits address space with

2-bits SPI/I2C command prefix. Prefix 0'b00 for read and 0'b10 for write to the address space,

0'b01 reserved for Host Commands and 0'b11 undefined. The following are the memory space

defined.

Table 5-1 FT800 Memory Map

Start

Address

End

Address

Size

NAME

Description

00 0000h

03 FFFFh

256 kB

RAM_G

Main graphics RAM

0C 0000h

0C 0003h

4 B

ROM_CHIPID

FT800 chip identification and revision

information:

Byte [0:1] Chip ID: “0800”

Byte [2:3] Version ID: “0100”

0B B23Ch

0F FFFBh

275 kB

ROM_FONT

Font table and bitmap

0F FFFCh

0F FFFFh

4 B

ROM_FONT_ADDR

Font table pointer address

10 0000h

10 1FFFh

8 kB

RAM_DL

Display List RAM

10 2000h

10 23FFh

1 kB

RAM_PAL

Palette RAM

10 2400h

10 257Fh

380 B

REG_*

Registers

10 8000 h

10 8FFFh

4 kB

RAM_CMD

Command Buffer

NOTE: The addresses beyond this table are reserved and shall not be read or written.

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