AT&T 3B2/300 Technical Reference Manual page 298

- - - - - - - - - - - - - - - - - - - - - - - - - - - FUNCTIONAL DESCRIPTION
WE 32101 MEMORY MANAGEMENT UNIT
r--------------------, r----------------------------,
SEGMENT DESCRIPTOR CACHE PAGE DESCRIPTOR CACHE
I
LEFT HALF RIGHT HALF
I I
8 DESCRIPTORS
8 DESCRIPTORS
4 SECTIONS
64 BITS
4 SECTIONS
64 BITS 64 BITS
L--------------------J L----------------------------J
r--------------~---------------,
I
SECTION RAM A
I
SECTION RAM B
I
I ~ I ~ I
I I I
I I I
I I I
I 4 WORDS I 4 WORDS I
I I I
I I I
I I I
I 32 BITS I 32 BITS I
I I I
L--------------~---------------J
r---------------------------,
MMU REGISTERS
CONFIGURATION REGISTER
VIRTUAL ADDRESS REGISTER
4 WORDS
FAULT CODE REGISTER
FAULT ADDRESS REGISTER
32 BITS
L---------------------------J
Figure 3-16: WE 32101 MMU Block Diagram
FUNCTIONAL DESCRIPTION 3-45