Motorola MC68VZ328 Manuale Utente
Programming Model
General-Purpose Timers
12-11
12.2.5
Timer Counter Registers 1 and 2
Each read-only timer counter (TCNx) register contains the current count. The TCNx can be read at any
time without affecting the current count. The settings for the registers are described in Table 12-6.
time without affecting the current count. The settings for the registers are described in Table 12-6.
TCN1
Timer Counter Register 1
0x(FF)FFF608
TCN2
Timer Counter Register 2
0x(FF)FFF618
BIT 15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
BIT 0
COUNT
TYPE
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
BIT 15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
BIT 0
COUNT
TYPE
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
Table 12-6. Timer Counter Register Description
Name Description
Setting
COUNT
Bits 15–0
Bits 15–0
Timer Counter Value—This 16-bit field con-
tains the current count value.
tains the current count value.
This field has a valid range 0x0000 to 0xFFFF.