Z8E520 Datasheet, PDF (29/43 Pages) Zilog, Inc. – 1.5 MBPS USB Device Controller

Zilog
Z8E520/C520
1.5 MBPS USB Device Controller
INITIAL STATES: COMM REGISTERS, UPON CHANGING MODES:
ADDR NAME
D7
D6
D5
D4
D3
D2
D1
D0
1
0
PORT A
Cleared by POR,or not changed
1
PORT B
Same as Port A
2
3
4
5
SIE
6 CONTROL
ALL 0
7
REGS
8
9
A
B
C
D
E
Uninitialized
F
INITIAL STATES: PORT CONFIGURATION REGISTERS:
All Registers in this state are cleared to 0 on POR.
DS97KEY2005
PRELIMINARY
29