User guide

Figure 9–3 Module Display Control Register
31 08 07 06 05 04 03 02 01 00
ML013287
Brightness Control
Display Character
Don't Care
MOD_DISP_REG :
The display character is stored in bits <6:0>. The most significant bit (bit <7>)
can be set to increase the brightness of the display.
Figure 9–4 shows the character set of the display. The numbers along the left-
hand edge are the most-significant hexadecimal digit of the character number,
while the least-significant is along the top. For example, the character ‘‘W’’ is
displayed by writing a value of 0x57 to the display register. A value of 0xD7
displays ‘‘W’’ with full brightness.
After a system reset, the display defaults to character 0x7F (‘‘:::’’) at full
brightness. During a system reset, all dots in the matrix are lit.
Figure 9–4 Display Character Set
0123456789ABCDEF
0,1 B L A N K
2 !"#$%&’ ( ) *+, - . /
30123456789: ; <=> ?
4@ABCDEF GHI J KLMN O
5P QRS TUVWXYZ[ \ ] ^ _
6‘ abcdef ghi j kl mn o
7pqr st uvwxyz{| }~ :::
9.2.2 Module Configuration Register
CPU address: 0x1C0010020
Nbus offset: 0x801
9–6 Nbus