SB16C1058-TQFP128 IK Semicon Co., Ltd, SB16C1058-TQFP128 Datasheet - Page 15

• Manufacturer Part Number: SB16C1058-TQFP128
• Description: Octal-uart Controller With 256-byte Fifo
• Manufacturer: IK Semicon Co., Ltd

Table 3:
nPNEN2_INTF0
nPNEN3_INTF1
nPNEN0_OSC0
nPNEN1_OSC1
nCS_nUART
ODASY[1:0]
IDASY[1:0]
PIN Name
DATA[7:0]
ADDR0
ADDR1
ADDR2
ADDR3
ADDR4
ADDR5
ADDR6
ADDR7
nIOW
nOPT
nBUF
nIOR
6.2 MIO mode
Pin Usage between Normal mode and MIO mode
IN16C1058 operates in MIO mode with MODE = 1b.
IN16C1058 contains built-in Control Logics that allow expansion of up to 32 ports (by 8
ports) by adding MIO Bus Interface and Option Registers structure on a common Octal-
UART. Through this method, glue-logics are unnecessary when expanding ports. With
SystemBase’s PCI Bridge Controller SB4002A, 8, 16, 24 and 32 port serial
communication PCI Card Adapter application can be made easily with low cost.
In MIO mode, ADDR[7:0] 8-bits are used. ADDR[7:6] are used to select one of 4 Octal
UARTS, ADDR[5:3] are used to select one of the 8 UART channels and ADDR[2:0] are
used to select UART channel’s internal registers. To manage the install information of
Octal UARTs that are managed by 8 ports on MIO Bus, Daisy Chain is used and the
connections are IDASY[1:0] and ODASY[1:0]. nPNEN0_OSC0, nPNEN_OSC1,
nPNEN_INTF0 and nPNEN_INTF1 are used for management of Oscillator and Interface
Normal mode
DATA[7:0]
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
ADDR0
ADDR1
ADDR2
ADDR3
ADDR4
ADDR5
nIOW
nIOR
nCS
OCTAL UART WITH 256-BYTE FIFO
nPNEN2_INTF0
nPNEN3_INTF1
nPNEN0_OSC0
nPNEN1_OSC1
ODASY[1:0]
IDASY[1:0]
MIO mode
DATA[7:0]
ADDR0
ADDR1
ADDR2
ADDR3
ADDR4
ADDR5
ADDR6
ADDR7
nUART
nIOW
nOPT
nBUF
nIOR
Normal mode (nCS)
MIO mode (nUART)
MIO mode (nOPT)
Option Register Access Enable
MIO Bus Read Enable for 245 Buffer
Input Daisy Chain for 8-port Unit Block
Output Daisy Chain for 8-port Unit Block
Input @ Initial Time : OSC[1:0], INTF[1:0]
Output @ Normal : nPNEN[3:0]
ADDR[2:0] : UART registers selection
ADDR[5:3] : 8 UARTs selection
ADDR[5:0] : same as the normal mode
ADDR[7:6] : 4 Panels selection
ADDR[5:0] : option registers selection
Description
IN16C1058
JUNE 2009
REV 1.0
15