ox16cf950 ETC-unknow, ox16cf950 Datasheet - Page 11

• Manufacturer Part Number: ox16cf950
• Description: Cost Asynchronous Card
• Manufacturer: ETC-unknow

locations only)
(Valid at even
Common
Attribute
5.2.2
5.3
5.3.1
Access to the internal UART is achieved via standard IO
mapping. As the device is configured as a single function
device, no base address is required to access the UART.
As IO mapping is used, access to the UART is permitted
only after the card has been configured.
Configuration Options Register has been set in the
Attribute area, the UART can be accessed following the
mapping shown in Table 3.
0xFF
0xFF
0x00
0xF8
0xF6
0x00
OXFORD SEMICONDUCTOR LTD.
0x80
0x7F
Figure 4: Normal Mode memory space map
Access to IO Function
Normal Mode Space Map
Access to Internal UART
Space, which can be
downloaded from the
NOT VALID
b) Bluetooth Default
Additional Storage
a) Normal Default
(downloaded from
Main CIS either:
c) Custom CIS
Configuration
EEPROM.
EEPROM)
Direct
Registers
Function
NOT VALID
NOT VALID
Indirect
Once the
0xFF
0x00
0xFF
0x00
UART Address (hex)
0
1
2
3
4
5
6
7
5.3.2
Access to the internal Local Bus is achieved via standard
IO mapping. The Local Bus function is available in Local
Bus mode only as it’s device pins are used as the extended
address bits required for direct access in Normal mode.
Indirect access is only supported in the PCMCIA
specification, so the local bus is only available in PCMCIA
systems. As the device is configured as a single function
device, no base address is required to access the Local
Bus. As IO mapping is used, access to the Local Bus is
permitted only after the card has been configured. Once
the Configuration Options Register has been set in the
Attribute area, the Local Bus can be accessed following the
mapping shown in table Table 4. This access is permitted
only if bit[0] is reset to ‘0’ in the MDR register in the UART,
otherwise the local configuration registers will be accessed
rather than the local bus.
Local Bus Address
0
1
2
3
4
5
6
7
Note 1: Although only 4 bits of IO address space are
requested by the default CIS in the device, the address
range may be extended past these four bits. This can be
achieved by modifying the CIS, via the EEPROM, and
connecting the extended address bits to the external local
bus device.
Table 4: Local Bus mapping in I/O space
Table 3: UART's mapping in I/O space
Access to Local Bus
OXCF950 DATA SHEET V1.1
1
(hex)
CF/PCMCIA offset from
address 0 for UART
function in IO space (hex)
0
1
2
3
4
5
6
7
CF/PCMCIA offset from
address 0 for Local Bus
function in IO space (hex)
8
9
A
B
C
D
E
F
Page 11