Table 3-5. Powerpc 60X Bus To Rom/Flash Access Timing - 64 Bits (32 Bits Per Falcon); Table 3-6. Powerpc 60X Bus To Rom/Flash Access Timing - 16 Bits (8 Bits Per Falcon); Rom/Flash Speeds - Motorola MVME2300 Series Programmer's Reference Manual

Falcon ECC Memory Controller Chip Set

ROM/Flash Speeds

3
Table 3-5. PowerPC 60 x Bus to ROM/Flash Access Timing — 64 Bits
Access Type
4-Beat Read
4-Beat Write
1-Beat Read
1-Beat Write
Table 3-6. PowerPC 60 x Bus to ROM/Flash Access Timing — 16 Bits (8 Bits
Access Type
4-Beat Read
4-Beat Write
1-Beat Read (2 bytes to 8 bytes)
1-Beat Read (1 byte)
1-Beat Write
3-10
The Falcon pair provides the interface for two blocks of ROM/Flash. Each
block can address up to 64MB of memory depending on the width
implemented for that block (16 bits or 64 bits). Bank A is 64 bits wide and
bank B is 16 bits wide. The access times for ROM/Flash are listed in
3-5 and Table 3-6.
(32 Bits per Falcon)
Beat
N/A
per Falcon)
Beat
N/A
Clock Periods Required For:
1st 2nd
Beat
20 16
N/A
20 -
19 -
Clock Periods Required For:
1st 2nd
Beat
68 64
N/A
68 -
20 -
19 -
Computer Group Literature Center Web Site
Total
3rd 4th
Clocks
Beat Beat
16 16
N/A N/A
- -
- -
Total
3rd 4th
Clocks
Beat Beat
64 64
N/A N/A
- -
- -
- -
Table
68
N/A
20
19
260
N/A
68
20
19