Port Setting - Toshiba TLCS-900/H1 Series Manual

(1) Port setting

The boot program port settings are shown in Table 3.21.3, and Table 3.21.4 shows
PCB design. These port settings must be carefully noted when designing an application
system.
The remaining ports are not set, so they maintain their status after reset.
Port Function
NAND P71 Output
NDRE
flash
P72 Output
NDWE
P75 NDR/ B
P84 Output
ND 0 CE
PJ5 NDALE Output
PJ6 NDCLE Output
−
D7 to D0
UART
PF0 TXD1 Output
PF1 RXD1
− D +
USB
− D −
PC6 PUCTL Output
Table 3.21.3 Port Setting
I/O
(a)
Input
Set to the function pin shown
left
I/O
No change to input port status
after reset
Input Set to the RXD1 input pin
I/O
I/O
No change to input port status
after reset
92CH21-439
Port Setting by Boot Program
(b)
No change from (a)
No change
No change from (a)
No change
Set to the output port pin
TMP92CH21
(c)
No change from (a)
Set to the TXD1 output pin
No change from (a)
No change from (b)
2006-09-15