A.
11 10 9 8 7 6 5 4 3 2 1 0
+----+----+----+----+----+----+----+----+----+----+----+----+
| CT | CT | CT | CT | CT | CT | CT | CT | CI | CI | CO | CO |
+----+----+----+----+----+----+----+----+----+----+----+----+
B.
| read/write | addr | hit? | value(or unknown) |
|---|---|---|---|
| read | 0x834 | No | - |
| write | 0x836 | Yes | unknown |
| read | 0xFFD | Yes | 0xC0 |