Question regarding possible conflict in datasheet PIC16F15344 regarding watchdog registers
I am referring to the datasheet for the PIC16F15344 - DS40001889B.
On page 151. Diagram indicates that the watchdog counter is 5 bits wide.
On page 156. Register 12-5: WDTTMR. Description shows bits 3-6 form part of WDTTMR<3:0>. here the counter register seems to be only 4 bits wide, however on page 157, the summary Table 12-3 shows the relevant register as WDTTMR<4:0> which is 5 bits wide but still only taking 4 bits as bit 7 is greyed out.
I looked at the application note for the WWDT - TB3123(DS90003123A) however the register description posted in Table A-1 page 6 also describes the register WDTTMR<4:0> which is 5 bits but also only taking up 4 bit slots with the last one being greyed out.
I did not see anything mentioned in the errata.
My question is, are the WDTTMR bits the watchdog counter or are they referring to something else? Is the field 4 or 5 bits wide?