SCG9800 Datasheet, PDF (14/29 Pages) List of Unclassifed Manufacturers – 8-BIT MICROCONTROLLER

SCG9800
8-BIT MICROCONTROLLER
TCONG
Bit
7
6
5
4
3
2
1
0
R/W
-
-
-
WWWWW
Reserved
000 : disable T0 and T1
0x1 : enable T0
01x : enable T1
1xx : cascade T0:T1 as 16-bit timer
Real time timer
0 : disable
1 : enable (0.5s interrupt)
Watch dog timer
0 : disable
1 : enable (~1s)
External memory access, EM
0 : disable (default)
1 : enable
External memory access mode, EMM (see below)
External memory access mode, EMM
With external memory access enabled, i.e. EM set,
EXT-ADDR
0
0
1
1
EMM
0
1
0
1
External Memory
Size
Chip Select
4M-bit
CS1
2M-bit
CS1
2M-bit
CS2
4M bit
CS1
4M bit
CS2
8M bit
CS1
Figure 15. Timer Configuration Port
Score Concept Semiconductor Ltd.
14
Sept 2000