Z86017 Datasheet, PDF (61/138 Pages) Zilog, Inc. – PCMCIA Interface Solution

Z86017/Z16017 PCMCIA Interface Solution
Product Specification
47
Table 21. ATA Register Selection Designations
Register 4
Bit 3
SEL_SECO
ND_3x
X
0
0
0
0
1
1
Register 4
Bit 2
SEL_SECO
ND_1x
X
0
0
0
1
1
1
Register 4 Register 4 Register 3
Bit 1
Bit 0
Bit 6
SEL_PRIMA SEL_PRIMA EN_IO_M
RY_3x
RY_1x
ODE
X
X
0
0
0
1
0
1
1
1
1
1
0
0
1
0
0
1
1
1
Address
Range
Respons
e
Note
XX
XX
1F0-1F7
1F0-1F7,
3F6, 3F7
170-177
170- 177,
376, 377
170- 177,
376, 377,
1F0-1F7
3F6, 3F7
Disabled
Disabled
Primary
HDD
Primary
HDD
Secondary
HDD
Two drive
system on
local
AT bus
side
Table 22. Reset Conditions
Register 4
Bit 5
EN_DIS_RST
1
0
0
0
0
PC_HRESET
X
0
1
1
0
Register 7
Bit 0
ATA_MODE
X
0
0
1
1
ATA_HRESET
1
1
0
1
0
Notes:
PCMCIA Mode, Reset
Disabled
PCMCIA Mode, No Reset
PCMCIA Mode, Asserted
Reset
ATA Mode, No Reset.
ATA Mode, Asserted Reset.
Programming Internal Registers
PS012002-1201