Daughter Board Stack; Daughter Board Wait#Output - Hitachi SH7760 Solution Engine2 Overview

9.3 Daughter Board Stack

A maximum of 3 daughter boards can be stacked. When multiple daughter boards are stacked, care should be
taken for electric capacity. Figure 9.2 shows an example of daughter board stacks.
Solution Engine2
Daughter board
Daughter board
9.4 Daughter Board WAIT# Output
Solution Engine2 is provided with a WAIT# input pin on the extension slot for WAIT input to the daughter board.
When a WAIT# is output from the daughter board, open collector output must take place to prevent a collision of
WAIT# output when multiple daughter boards are stacked.
SH7760
/RDY
(Active Low)
Figure 9.2 Daughter Board Stack
Solution Engine2
3.3V
FPGA 680 ohm Extension slot
WAIT#
(Active Low)
Figure 9.3 Extension Slot IORDY Pin Structure
Extension slot: 20-5603-14-0101-861
Extension slot: 10-5603-14-0101-861
Extension slot: 20-5603-14-0101-861
Extension slot: 10-5603-14-0101-861
Extension slot: 20-5603-14-0101-861
Daughter Board
Extension slot
Open collector output
114
Extension slot device
WAIT#
(Active Low)