at75c220 ATMEL Corporation, at75c220 Datasheet - Page 117

• Manufacturer Part Number: at75c220
• Description: Smart Internet Appliance Processor Siap
• Manufacturer: ATMEL Corporation

TC Status Register
Register Name:TC_SR
Access Type:Read-only
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COVFS: Counter Overflow Status
LOVRS: Load Overrun Status
CPAS: RA Compare Status
CPBS: RB Compare Status
CPCS: RC Compare Status
LDRAS: RA Loading Status
LDRBS: RB Loading Status
ETRGS: External Trigger Status
CLKSTA: Clock Enabling Status
MTIOA: TIOA Mirror
MTIOB: TIOB Mirror
0 = No counter overflow has occurred since the last read of the Status Register.
1 = A counter overflow has occurred since the last read of the Status Register.
0 = Load overrun has not occurred since the last read of the Status Register or WAVE = 1.
1 = RA or RB have been loaded at least twice without any read of the corresponding register since the last read of the
Status Register if WAVE = 0.
0 = RA compare has not occurred since the last read of the Status Register or WAVE = 0.
1 = RA compare has occurred since the last read of the Status Register if WAVE = 1.
0 = RB compare has not occurred since the last read of the Status Register or WAVE = 0.
1 = RB compare has occurred since the last read of the Status Register if WAVE = 1.
0 = RC compare has not occurred since the last read of the Status Register.
1 = RC compare has occurred since the last read of the Status Register.
0 = RA Load has not occurred since the last read of the Status Register or WAVE = 1.
1 = RA Load has occurred since the last read of the Status Register, if WAVE = 0.
0 = RB load has not occurred since the last read of the Status Register or WAVE = 1.
1 = RB load has occurred since the last read of the Status Register if WAVE = 0.
0 = External trigger has not occurred since the last read of the Status Register.
1 = External trigger has occurred since the last read of the Status Register.
0 = Clock is disabled.
1 = Clock is enabled.
0 = TIOA is low. If WAVE = 0, then TIOA pin is low. If WAVE = 1, then TIOA is driven low.
1 = TIOA is high. If WAVE = 0, then TIOA pin is high. If WAVE = 1, then TIOA is driven high.
0 = TIOB is low. If WAVE = 0, then TIOB pin is low. If WAVE = 1, then TIOB is driven low.
1 = TIOB is high. If WAVE = 0, then TIOB pin is high. If WAVE = 1, then TIOB is driven high.
ETRGS
31
23
15
–
–
–
7
LDRBS
30
22
14
–
–
–
6
LDRAS
29
21
13
–
–
–
5
CPCS
28
20
12
–
–
–
4
CPBS
27
19
11
–
–
–
3
MTIOB
CPAS
26
18
10
–
–
2
LOVRS
MTIOA
25
17
–
9
–
1
CLKSTA
COVFS
24
16
–
8
–
0
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