參數(shù)資料
型號: 8XC196LX
英文描述: 8XC196Lx - 8XC196Lx Supplement to 8X196Kx. 8X196Jx. 87C196CA User's Manual
中文描述: 8XC196Lx - 8XC196Lx補編8X196Kx。 8X196Jx。 87C196CA用戶手冊
文件頁數(shù): 54/136頁
文件大?。?/td> 659K
代理商: 8XC196LX
8XC196LXSUPPLEMENT
6-2
For transmissions, SSIO0_CLK determines whether the SSIO shifts out data bits on rising or fall-
ing clock edges. For receptions, SSIO0_CLK determines whether the SSIO samples data bits on
rising or falling clock edges.
6.2
SSIO 1 CLOCK REGISTER
SSIO1_CLK selects the SSIO mode of operation (standard, duplex, or channel-select), enables
the channel-select master contention interrupt request, and selects the phase and polarity for the
serial clock (SC1) for channels. In standard mode, use this register to configure the serial clock
for channel 1.
SSIO1_CLK
Address:
Reset State:
1FB7H
00H
The SSIO 1 clock (SSIO1_CLK) register selects the SSIO mode of operation (standard, duplex, or
channel-select), enables the channel-select master contention interrupt request, and selects the
phase and polarity for the serial clock (SC1) for channel 1.
7
0
CHS
DUP
CONINT
CONPND
PHAS
POLS
Bit
Number
Bit
Mnemonic
Function
7:6
Reserved; for compatibility with future devices, write zeros to these bits.
5
CHS
These bits determine the SSIO operating mode.
CHS
DUP
0
0
standard mode
0
1
duplex mode
1
0
channel-select half-duplex mode (uses SD1 only)
1
1
channel-select full-duplex mode (uses both SD0 and SD1)
4
DUP
3
CONINT
Master Contention Interrupt
For channel-select master operations, the SSIO sets the master
contention interrupt pending bit (CONPND) when the CHS# pin is
externally activated. In a system with multiple masters, an external
master activates the CHS# signal to request control of the serial clock.
CONINT determines whether the SSIO sets both CONPND and the
SSIO0 interrupt pending bit or only CONPND when the CHS# pin is
externally activated.
0 = SSIO sets only CONPND
1 = SSIO sets both CONPND and the SSIO0 interrupt pending bit
This bit is valid for channel-select master operations and ignored for all
other operations.
Figure 6-2. SSIO 1 Clock (SSIO1_CLK) Register
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