Holtek HT48R30A-1 - Page 51

42
I/O Type MCU
T M R
T E
T i m e r / E v e n t C o u n t e r
M o d e C o n t r o l
T O N
P r e l o a d R e g i s t e r
T i m e r / E v e n t
C o u n t e r
D a t a B u s
R e l o a d
O v e r f l o w
t o I n t e r r u p t
B Z
B Z
8 - s t a g e p r e s c a l e r
P S C 2 ~ P S C 0
( 1 / 2 ~ 1 / 2 5 6 )
8 - B i t T i m e r / E v e n t C o u n t e r
T M 1 T M 0
2
¸
C o n f i g u r a t i o n
O p t i o n
f
S Y S
R T C O s c i l l a t o r
8-bit Timer/Event Counter Structure - HT48R10A-1/HT48C10-1 and HT48R30A-1/HT48C30-1
T M R 0
T 0 E
T i m e r / E v e n t C o u n t e r
M o d e C o n t r o l
1 6 - B i t
P r e l o a d R e g i s t e r
D a t a B u s
R e l o a d
O v e r f l o w
t o I n t e r r u p t
L o w B y t e
B u f f e r
T 0 M 1 T 0 M 0
T 0 O N
H i g h B y t e
L o w B y t e
1 6 - B i t T i m e r / E v e n t C o u n t e r
C o n f i g u r a t i o n
O p t i o n
f
S Y S / 4
R T C O s c i l l a t o r
B Z
B Z
2
¸
16-bit Timer/Event Counter 0 Structure - HT48R70A-1/HT48C70-1, HT48RU80/HT48CU80
T M R 0
T
0
E
T i m e r / E v e n t C o u n t e r
M o d e C o n t r o l
T 0 O N
P r e l o a d R e g i s t e r
T i m e r / E v e n t
C o u n t e r
D a t a B u s
R e l o a d
O v e r f l o w
t o I n t e r r u p t
B Z
B Z
8 - s t a g e p r e s c a l e r
T 0 P S C 2 ~ T 0 P S C 0
( 1 / 2 ~ 1 / 2 5 6 )
8 - B i t T i m e r / E v e n t C o u n t e r
T 0 M 1 T 0 M 0
2
¸
C o n f i g u r a t i o n
O p t i o n
f
S Y S
R T C O s c i l l a t o r
8-bit Timer/Event Counter 0 Structure - HT48R50A-1/HT48C50-1
T M R 1
T 1 E
T i m e r / E v e n t C o u n t e r
M o d e C o n t r o l
1 6 - B i t
P r e l o a d R e g i s t e r
D a t a B u s
R e l o a d
O v e r f l o w
t o I n t e r r u p t
L o w B y t e
B u f f e r
T 1 M 1 T 1 M 0
T 1 O N
H i g h B y t e
L o w B y t e
1 6 - B i t T i m e r / E v e n t C o u n t e r
C o n f i g u r a t i o n
O p t i o n
f
S Y S / 4
R T C O s c i l l a t o r
B Z
B Z
2
¸
N o t e : N o b u z z e r o u t p u t o n
H T 4 8 R 5 0 A - 1 / H T 4 8 C 5 0 - 1 a n d
H T 4 8 R 7 0 A - 1 / H T 4 8 C 7 0 - 1
16-bit Timer/Event Counter 1 Structure - HT48R50A-1/HT48C50-1, HT48R70A-1/HT48C70-1,
HT48RU80/HT48CU80