44
Three-state access to on-chip peripheral modules
T
1
state
Bus cycle
Internal
address bus
Internal
read signal
Internal
data bus
(read access)
Internal
write signal
Read data
Address
Internal
data bus
(write access)
T
2
state
T
3
state
Write data
SUB
ø or ø
Figure 2.13 On-Chip Peripheral Module Access Cycle (3-State Access)