T8301 datasheet(13/190 Pages) AGERE

13 / 190 page

Lucent Technologies Inc.

Advance Data Sheet

December 2000

Phone-On-A-Chip IP Solution DSP

T8301 Internet Protocol Telephone

4 DSP1600 Core (continued)

Table 4. T8301 Instruction/Coefficient Memory Map

Address

X MAP1

X MAP3

Address

Y MAP

0x0000

0x0800

Dual-port RAM 6K

0x0800

Dual-port RAM 6K

0x1000

(DPRAM)

0x1000

(DPRAM)

0x1800

0x2000

Internal ROM 32K

0x2000

0x2800

(IROM)

Reserved 10K

0x2800

Reserved 10K

0x3000

0x3800

0x4000

(Instructions

0x4000

I/O and ERAMLO (See Table 5.)

0x4800

and constants)

0x4800

ERAMLO (See Table 5.)

0x5000

0x5800

ERAMLO External chip select

0x6000

Internal ROM 32K

0x6000

X_CSN (external SRAM) 12K

0x6800

(IROM)

0x6800

0x7000

0x7800

0x8000

(Instructions

0x8000

0x8800

and constants)

0x8800

0x9000

Internal SRAM 16K

0x9000

Internal SRAM 16K

0x9800

(ISRAM)

0x9800

(1K—16K block mirrored)

0xA000

(ISRAM)

0xA800

0xB000

0xB800

0xC000

0xC800

Dual-port RAM 6K

0xC800

0xD000

(DPRAM)

Internal SRAM 16K

0xD000

Internal SRAM 16K

0xD800

(ISRAM)

0xD800

(1K—16K block mirrored)

0xE000

(ISRAM)

0xE800

Reserved 10K

0xE800

0xF000

0xF800

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