Hard disk drive cache memory and playback device

50

Random
Access

55

56

Mass Storage
Access

58

NOR

NOR 44

Pseudo
NOR

PS/SDSRAM

PSRAM/SDRAM

Host Memory space I Physical memory on this device

I

t
I
I

i
I

r
i
I
j
i

RAM

RAM

Configuration
Register

Memory
Mapped
ATA Interface

Sequential access

RAM 16
-PNOR PTR

1 i

spaging in/out
FFS^ Defect Mgrl

RAM 100

Configuration
NV Register

Embedded
Firmware

Task File
Registers

Data Registers

Figure 5