User manual

System Interface Unit (SIU)
MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
Freescale Semiconductor 4-45
4.3.2.16 Time Counter Alarm Register (TMCNTAL)
The time counter alarm register (TMCNTAL), shown in Figure 4-37, holds a value (ALARM). When the
value of TMCNT equals ALARM, a maskable interrupt is generated.
Table 4-20 describes TMCNTAL fields.
0 15
Field TMCNT
Reset 0000_0000_0000_0000
R/W R/W
Addr 0x0x10224
16 31
Field TMCNT
Reset 0000_0000_0000_0000
R/W R/W
Addr 0x10226
Figure 4-36. Time Counter Register (TCMCNT)
0 15
Field ALARM
Reset 0000_0000_0000_0000
R/W R/W
Addr 0x0x1022C
16 31
Field ALARM
Reset 0000_0000_0000_0000
R/W R/W
Addr 0x1222E
Figure 4-37. Time Counter Alarm Register (TMCNTAL)
Table 4-20. TMCNTAL Field Descriptions
Bits Name Description
0–31 ALARM The alarm interrupt is generated when ALARM field matches the corresponding TMCNT bits. The
resolution of the alarm is 1 second.