Figure 4-3 Main Links And Sublinks - Hitachi S10mini CPU LINK Hardware Manual

4 OPERATIONS
(5) Operations using main links and sublinks
• Up to 16 CPUs can be connected by main links or sublinks.
• Allocate G-registers so they will not be transferred in duplicate.
• The G-register data that is transferred over the main link line is not reflected in the CPUs
connected to the sublink line. Likewise, the G-register data that is transferred over the
sublink line is not reflected in the CPUs connected to the main link line.
Sample configuration:
Transfer area
G000 to 1FF
CPU1
Main link
G-register area transfer operation:
CPU1
G000
G200
G400
G600
G800
(zero)
GA00
(zero)
GC00
(zero)
GE00
(zero)
Transfer area Transfer area
G800 to 9FF G200 to 3FF
CPU2
Transfer area
GA00 to BFF
CPU5
Sublink
CPU2
Data present on the main link line is not
transferred over the sublink line.
CPU5
(zero)
(zero)
(zero)
(zero)

Figure 4-3 Main Links and Sublinks

Transfer area
G400 to 5FF
CPU3
Transfer area
GC00 to DFF
CPU6
CPU3
(zero)
(zero)
(zero)
(zero)
Data present on the sublink line is not
transferred over the main link line.
CPU6
(zero)
(zero)
(zero)
(zero)
4-4
Transfer area
G600 to 7FF
CPU4
Transfer area
GE00 to FFF
CPU7
CPU4
(zero)
(zero)
(zero)
(zero)
CPU7
(zero)
(zero)
(zero)
(zero)