SDA5523 Micronas Semiconductor, SDA5523 Datasheet - Page 119

• Manufacturer Part Number: SDA5523
• Description: SDA55xx TVText Pro
• Manufacturer: Micronas Semiconductor

DATA SHEET
Table 3–4: SFR register description, continued
Micronas
Name
C_NT0
M0[1:0]
TL0
TL0[7:0]
TL1
TL1[7:0]
TH0
TH0[7:0]
TH1
TH1[7:0]
MEX1
CB[19:16]
NB[19:16]
MEX2
MM
MB[18:16]
IB[19:16]
MEX3
MB[19]
UB3
UB4
MX[19]
MXM
MX[18:16]
MEXSP
MEXSP[6:0]
Sub
h89[2]
h89[1:0]
h8A
h8A[7:0]
h8B
h8B[7:0]
h8C
h8C[7:0]
h8D
h8D[7:0]
h94
h94[7:4]
h94[3:0]
h95
h95[7]
h95[6:4]
h95[3:0]
h96
h96[7]
h96[6]
h96[5]
h96[4]
h96[3]
h96[2:0]
h97
h97[6:0]
Dir
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
0
0
h00
0
h00
0
h00
0
h00
0
h00
0
0
h00
0
0
0
h00
0
0
0
0
0
0
h00
0
Sept. 10, 2004; 6251-556-3DS
Range
0..1
0..3
0..255
0..255
0..255
0..255
0..15
0..15
0..1
0..7
0..15
0..1
0..1
0..1
0..1
0..1
0..7
0..255
Function
Timer or counter selector. Cleared for timer operation (input from inter-
nal system clock). Set for Counter operation (input from ëTxí input
pin).
Timer Operating Mode
00: 8048 timer: ëTLxí serves as five-bit prescaler.
01: 16-bit timer/counter: ëTHxí and ëTLxí are cascaded, there is no
prescaler.
10: 8-bit auto-reload timer/counter: ëTHxí holds a value which is to be
reloaded into ëTLxí each time it overflows.
11: (Timer 0) TL0 is an eight-bit timer/counter controlled by the stan-
dard timer 0 control bits; TH0 is an eight-bit timer only controlled by
timer 1 control bits.
(Timer 1) Timer/counter 1 is stopped.
Timer/Counter 0 Low Byte
Timer/Ctr 0 Low byte
Timer/Counter 0 Low Byte
Timer/Ctr 1 Low byte
Timer/Counter 0 High Byte
Timer/Ctr 0 High byte
Timer/Counter 1 High Byte
Timer/Ctr 1 High byte
Memory Extension Register 1
Current Bank; Read Only
Next Bank; R/W
Memory Extension Register 2
Memory Mode; R/W; 1 = use MB
Memory Bank; R/W
Interrupt Bank; R/W
Memory Extension Register 3
Memory Bank bit; R/Wbit. See MEX2.
User bits; available to the user, for MMU they are donít care.
User bits; available to the user, for MMU they are donít care.
MOVX-Bank
R/W
If MXM is set, these bits will be used during external data moves into
or from an externally connected Data RAM.
During external Data Memory accesses, the bits MX19 Ö 16 are used
as address lines A19 Ö 16 instead of the current bank (CB).
MOVX-Bank
R/W
If MXM is set, these bits will be used during external data moves into
or from an externally connected Data RAM.
Memory Extension Stack Pointer
Memory Ext Stack Pointer
SDA 55xx
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