MPC860 Motorola, MPC860 Datasheet - Page 2

• Manufacturer Part Number: MPC860
• Description: Family Hardware Specifications
• Manufacturer: Motorola

Features
MPC8xx core that incorporates memory management units (MMUs) and instruction and
data caches and that implements the PowePC instruction set. The communications
processor module (CPM) from the MC68360 QUICC has been enhanced by the addition of
the inter-integrated controller (I
enabling the MPC860 to support any type of memory, including high-performance
memories and new types of DRAMs. A PCMCIA socket controller supports up to two
sockets. A real-time clock has also been integrated.
Table 1 shows the functionality supported by the members of the MPC860 family.
Part II Features
The following list summarizes the key MPC860 features:
2
• Embedded single-issue, 32-bit MPC8xx core (implementing the PowerPC
1
MPC860DE
MPC860DT
MPC860DP
MPC860EN
MPC860SR
MPC860T
MPC860P
MPC855T
architecture) with thirty-two 32-bit general-purpose registers (GPRs)
— The core performs branch prediction with conditional prefetch, without
— 4- or 8-Kbyte data cache and 4- or 16-Kbyte instruction cache (see Table 1)
Supporting documentation for these devices refers to the following:
4. MPC855T User’s Manual (MPC855TUM/D, Rev. 1).
1. MPC860 PowerQUICC User’s Manual (MPC860UM/D, Rev. 1).
2. MPC8XX ATM Supplement (MPC860SARUM/AD).
3. MPC860T (Rev. D), Fast Ethernet Controller Supplement (MPC860TREVDSUPP).
Part
conditional execution
– 16-Kbyte instruction caches are four-way, set-associative with 256 sets;
– 8-Kbyte data caches are two-way, set-associative with 256 sets; 4-Kbyte data
– Cache coherency for both instruction and data caches is maintained on 128-bit
4-Kbyte instruction caches are two-way, set-associative with 128 sets.
caches are two-way, set-associative with 128 sets.
(4-word) cache blocks.
Instruction
Cache
16
16
4
4
4
4
4
4
Cache (Kbytes)
MPC860 Family Hardware Specifications
Table 1. MPC860 Family Functionality
2
Data Cache
C) channel. The memory controller has been enhanced,
4
4
8
4
4
4
8
4
Up to 2
Up to 2
Up to 2
Up to 4
Up to 4
Up to 4
Up to 4
10T
1
Ethernet
10/100
—
—
—
1
1
1
1
1
ATM
yes
yes
yes
yes
yes
yes
—
—
SCC
2
2
2
4
4
4
4
1
Ref.
1,2,3
1,2,3
1,2,3
1,2,3
MOTOROLA
1,2
1
1
4
1