7 debug unit receiver holding register, 8 debug unit transmit holding register – Rainbow Electronics AT91CAP9S250A User Manual
Page 424
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424
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
31.5.7
Debug Unit Receiver Holding Register
Name:
DBGU_RHR
Access Type:
Read-only
• RXCHR: Received Character
Last received character if RXRDY is set.
31.5.8
Debug Unit Transmit Holding Register
Name:
DBGU_THR
Access Type:
Write-only
• TXCHR: Character to be Transmitted
Next character to be transmitted after the current character if TXRDY is not set.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
–
7
6
5
4
3
2
1
0
RXCHR
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
–
7
6
5
4
3
2
1
0
TXCHR
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